CVE-2014-4172

CRITICALNVD 9.89.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-17. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 5 sources updated this week

Also known asEUVD-2022-3362 (ENISA EUVD) · GHSA-9fc5-q25c-r2wr (GitHub Security Advisories)Source: ENISA EUVD

9.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 6.1%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A URL parameter injection vulnerability was found in the back-channel ticket validation step of the CAS protocol in Jasig Java CAS Client before 3.3.2, .NET CAS Client before 1.0.2, and phpCAS before 1.3.3 that allow remote attackers to inject arbitrary web script or HTML via the (1) service parameter to validation/AbstractUrlBasedTicketValidator.java or (2) pgtUrl parameter to validation/Cas20ServiceTicketValidator.java.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
47
EG Risk 47/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity98% × 45%
Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation6.1% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
6.1%
EPSS %ILE
93rd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.

EG Severity
9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
6.1% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

January 24, 2020

Last Modified

November 21, 2024

Advisory Details (9)

Auto-updated Oct 7, 2026
Patch available. Sources: redhat, github_commit, github_pr.
Web page

[SECURITY] [DSA 3017-1] php-cas security update

https://www.debian.org/security/2014/dsa-3017.en.html
GitHub pull request

URL Encode ticket parameter when presented for validation.

Fix merged in Jasig/phpCAS PR #125 on 2014-07-02 — awaiting tagged release

https://github.com/Jasig/phpCAS/pull/125
Web page

phpCAS/docs/ChangeLog at master · apereo/phpCAS · GitHub

https://github.com/Jasig/phpCAS/blob/master/docs/ChangeLog
GitHub commit

commit ae37092100c8 (Jasig/java-cas-client)

Fix landed in Jasig/java-cas-client commit ae37092100c8 — awaiting tagged release

https://github.com/Jasig/java-cas-client/commit/ae37092100c8eaec610dab6d83e5e05a8ee58814
GitHub commit Patch Available

commit f0e030014fb7 (Jasig/dotnet-cas-client)

Patch available: Jasig/dotnet-cas-client v1.0.2 (contains commit f0e030014fb7)

https://github.com/Jasig/dotnet-cas-client/commit/f0e030014fb7a39e5f38469f43199dc590fd0e8d
Red HatMentions a patch (unverified)

1131350 – (CVE-2014-4172) CVE-2014-4172 cas-client: Bypass of security constraints via URL parameter injection

https://bugzilla.redhat.com/show_bug.cgi?id=1131350
Web pageMentions a patch (unverified)

#759718 - php-cas needs to urlencode all tickets (CVE-2014-4172) - Debian Bug report logs

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=759718

Vendor Advisories for CVE-2014-4172(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(4)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatcas-client2015-05-14redhat
composerjasig/phpcas @ 1.3.3 (fixes < 1.3.3)—ghsa
mavenorg.jasig.cas:cas-client @ 3.3.2 (fixes < 3.3.2)—ghsa
nugetDotNetCasClient @ 1.0.2 (fixes < 1.0.2)—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(8 across 8 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
php-cas—
  • every version up to 1.3.3-1: fixed in 1.3.3-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
php-cas—
  • every version up to 1.3.3-1: fixed in 1.3.3-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
php-cas—
  • every version up to 1.3.3-1: fixed in 1.3.3-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
php-cas—
  • every version up to 1.3.3-1: fixed in 1.3.3-1
—
Debian:7(1)
PackageVulnerable rangeFix by version rangeDependents
php-cas1.3.1-4
  • every version up to 1.3.1-4+deb7u1: fixed in 1.3.1-4+deb7u1
—
Maven(1)
PackageVulnerable rangeFix by version rangeDependents
org.jasig.cas:cas-client3.0 ... 3.1.9 (21 versions)
  • every version up to 3.3.2: fixed in 3.3.2
—
NuGet(1)
PackageVulnerable rangeFix by version rangeDependents
DotNetCasClient1.0.0, 1.0.1
  • every version up to 1.0.2: fixed in 1.0.2
—
Packagist(1)
PackageVulnerable rangeFix by version rangeDependents
jasig/phpcas—
  • every version up to 1.3.3: fixed in 1.3.3
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 24× in last 7d / 74× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 99 of 212 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 113 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 03:55 UTCOSV refresh
  2. 2026-11-02 02:29 UTCEG score recompute
  3. 2026-11-02 02:29 UTCVendor advisory
  4. 2026-11-02 02:29 UTCGHSA enrichmentGHSA-9fc5-q25c-r2wr · GitHub severity CRITICAL · GitHub CVSS 9.8
  5. 2026-11-01 16:27 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  6. 2026-11-01 08:49 UTCGHSA enrichmentGHSA-9fc5-q25c-r2wr · GitHub severity CRITICAL · GitHub CVSS 9.8
  7. 2026-11-01 08:49 UTCEG score recompute
  8. 2026-11-01 02:59 UTCEG score recompute
  9. 2026-11-01 02:59 UTCVendor advisory
  10. 2026-10-31 16:26 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  11. 2026-10-31 03:28 UTCEG score recompute
  12. 2026-10-31 03:28 UTCVendor advisory
  13. 2026-10-30 16:27 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  14. 2026-10-30 03:57 UTCEG score recompute
  15. 2026-10-30 03:57 UTCVendor advisory
  16. 2026-10-29 16:27 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  17. 2026-10-29 04:27 UTCEG score recompute
  18. 2026-10-29 04:27 UTCVendor advisory
  19. 2026-10-28 16:26 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  20. 2026-10-28 04:51 UTCEG score recompute
  21. 2026-10-28 04:51 UTCVendor advisory
  22. 2026-10-27 16:26 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  23. 2026-10-27 05:20 UTCEG score recompute
  24. 2026-10-27 05:20 UTCVendor advisory
  25. 2026-10-26 16:26 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
Show 74 more
  1. 2026-10-26 01:48 UTCVendor advisory
  2. 2026-10-25 20:01 UTCEG score recompute
  3. 2026-10-25 16:26 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  4. 2026-10-25 02:17 UTCEG score recompute
  5. 2026-10-25 02:17 UTCVendor advisory
  6. 2026-10-24 16:27 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  7. 2026-10-24 02:47 UTCEG score recompute
  8. 2026-10-24 02:47 UTCVendor advisory
  9. 2026-10-23 16:26 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  10. 2026-10-23 03:16 UTCEG score recompute
  11. 2026-10-23 03:16 UTCVendor advisory
  12. 2026-10-22 16:26 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  13. 2026-10-22 03:43 UTCEG score recompute
  14. 2026-10-22 03:43 UTCVendor advisory
  15. 2026-10-21 16:26 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  16. 2026-10-21 04:12 UTCEG score recompute
  17. 2026-10-21 04:12 UTCVendor advisory
  18. 2026-10-20 16:26 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  19. 2026-10-20 04:42 UTCEG score recompute
  20. 2026-10-20 04:42 UTCVendor advisory
  21. 2026-10-19 16:26 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  22. 2026-10-19 05:10 UTCEG score recompute
  23. 2026-10-19 05:10 UTCVendor advisory
  24. 2026-10-18 05:37 UTCEG score recompute
  25. 2026-10-18 05:37 UTCVendor advisory
  26. 2026-10-17 16:26 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  27. 2026-10-17 06:04 UTCEG score recompute
  28. 2026-10-17 06:04 UTCVendor advisory
  29. 2026-10-16 16:27 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  30. 2026-10-16 06:33 UTCEG score recompute
  31. 2026-10-16 06:33 UTCVendor advisory
  32. 2026-10-15 16:26 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  33. 2026-10-15 05:13 UTCEG score recompute
  34. 2026-10-15 05:13 UTCVendor advisory
  35. 2026-10-14 16:26 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  36. 2026-10-14 00:57 UTCEG score recompute
  37. 2026-10-14 00:57 UTCVendor advisory
  38. 2026-10-13 16:26 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  39. 2026-10-12 21:01 UTCEG score recompute
  40. 2026-10-12 21:01 UTCVendor advisory
  41. 2026-10-12 16:27 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  42. 2026-10-12 01:24 UTCEG score recompute
  43. 2026-10-11 13:40 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  44. 2026-10-10 19:54 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  45. 2026-10-09 20:01 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  46. 2026-10-08 16:34 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  47. 2026-10-07 23:39 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  48. 2026-10-06 15:11 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  49. 2026-10-05 17:38 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  50. 2026-10-03 14:21 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  51. 2026-10-01 19:43 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  52. 2026-09-30 14:58 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  53. 2026-09-30 00:23 UTCEG score recompute
  54. 2026-09-28 13:45 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  55. 2026-09-27 13:39 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  56. 2026-09-27 11:07 UTCOSV refresh
  57. 2026-09-26 15:53 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  58. 2026-09-20 20:08 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  59. 2026-09-18 19:21 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  60. 2026-09-17 19:21 UTCEPSS rescoreEPSS 6.1% · 93rd percentile
  61. 2026-09-15 03:04 UTCEPSS rescoreEPSS 6.1% · 92nd percentile
  62. 2026-09-13 16:41 UTCEPSS rescoreEPSS 6.1% · 92nd percentile
  63. 2026-09-12 14:55 UTCEPSS rescoreEPSS 6.1% · 92nd percentile
  64. 2026-09-11 09:31 UTCEPSS rescoreEPSS 6.1% · 92nd percentile
  65. 2026-09-07 20:21 UTCOSV refresh
  66. 2026-09-07 15:56 UTCEPSS rescoreEPSS 6.1% · 92nd percentile
  67. 2026-09-06 13:42 UTCEPSS rescoreEPSS 6.1% · 92nd percentile
  68. 2026-09-05 15:23 UTCEPSS rescoreEPSS 6.1% · 92nd percentile
  69. 2026-09-04 13:55 UTCEPSS rescoreEPSS 6.1% · 92nd percentile
  70. 2026-09-02 14:07 UTCEPSS rescoreEPSS 6.1% · 92nd percentile
  71. 2026-09-01 13:48 UTCEPSS rescoreEPSS 6.1% · 92nd percentile
  72. 2026-08-30 19:12 UTCEPSS rescoreEPSS 6.1% · 92nd percentile
  73. 2026-08-28 21:34 UTCEPSS rescoreEPSS 6.1% · 92nd percentile
  74. 2026-08-27 14:20 UTCEPSS rescoreEPSS 6.1% · 92nd percentile

Frequently asked(5)

What is CVE-2014-4172?
CVE-2014-4172 is a critical-severity vulnerability; its CVE record was published on January 24, 2020. A URL parameter injection vulnerability was found in the back-channel ticket validation step of the CAS protocol in Jasig Java CAS Client before 3.3.2, .NET CAS Client before 1.0.2, and phpCAS before 1.3.3 that allow remote attackers to inject arbitrary web script or HTML via the (1) service…
When was CVE-2014-4172 made public?
CVE-2014-4172 was made public on June 24, 2014: that is the date its CVE record's CNA, MITRE Corporation, gives for when the vulnerability was made public. The CVE record itself was published on January 24, 2020. EchelonGraph's copy of the record carries a last-modified date of November 21, 2024; the record at its source may have been updated since.
Is CVE-2014-4172 actively exploited?
CVE-2014-4172 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 6.1% probability of exploitation in the next 30 days (93rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2014-4172?
CVE-2014-4172 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2014-4172?
A fix for CVE-2014-4172 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2014-4172 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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