CVE-2026-5797

MEDIUMNVD 5.35.3
EchelonGraph scoreMEDIUM confidence

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

Score 5.3 from GitHub Security Advisory published 2026-04-17. NVD baseline CVSS 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3

Also known asEUVD-2026-23373 (ENISA EUVD) · GHSA-7rv8-2hr2-39f9 (GitHub Security Advisories)Source: ENISA EUVD

5.3EG
EchelonGraph verdictMonitorNo fix is confirmed yet: check with the vendor for a fixed release; until one is applied, restrict network exposure of the affected system on your normal schedule (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 5.3Exploit: None knownExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

The CVE record's CNA (Wordfence) lists expresstech Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker versions up to and including 10.1.0 as affected. No release containing a fix is confirmed on record.

The Quiz And Survey Master plugin for WordPress is vulnerable to Arbitrary Shortcode Execution in versions up to and including 11.1.0. This is due to insufficient input sanitization and the execution of do_shortcode() on user-submitted quiz answer text. User-submitted answers pass through sanitize_text_field() and htmlspecialchars(), which only strip HTML tags but do not encode or remove shortcode brackets [ and ]. When quiz results are displayed, the plugin calls do_shortcode() on the entire results page output (including user answers), causing any injected shortcodes to be executed. This makes it possible for unauthenticated attackers to inject arbitrary WordPress shortcodes such as [qsm_result id=X] to access other users' quiz submissions without authorization, as the qsm_result shortcode lacks any authorization checks.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
24
EG Risk 24/100

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)
Severity53% × 45%
Impact severity (EG Severity): CVSS 5.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.7% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Check with the vendor for a fixed release; until one is applied, restrict network exposure of the affected system on your normal schedule.
EPSS PROB
0.5%
EPSS %ILE
44th
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 (5.3): severity, escalated by confirmed exploitation. This CVE's 5.3 is its impact severity (EG Severity), not escalated.

EG Severity
5.3 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS. 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 every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.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 every mission impact level.

No fix is confirmed yet. Check with the vendor for a fixed release; until one is applied, restrict network exposure of the affected system on your normal schedule.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (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)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). 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

April 17, 2026

Last Modified

April 22, 2026

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 37× 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 100 of 223 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. None are among the latest 100 rows. The 123 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  2. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  3. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  4. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  5. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  6. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  7. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  8. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  9. 2026-10-25 14:17 UTCEG score recompute
  10. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  11. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  12. 2026-10-22 21:03 UTCEG score recompute
  13. 2026-10-22 21:03 UTCGHSA enrichmentGHSA-7rv8-2hr2-39f9 · GitHub CVSS 5.3
  14. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  15. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  16. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  17. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  18. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  19. 2026-10-18 03:28 UTCEG score recompute
  20. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  21. 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  22. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  23. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  24. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  25. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.7% · 50th percentile
Show 75 more
  1. 2026-10-12 15:53 UTCEG score recompute
  2. 2026-10-11 19:37 UTCEG score recompute
  3. 2026-10-11 16:52 UTCEG score recompute
  4. 2026-10-11 14:14 UTCEG score recompute
  5. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  6. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  7. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  8. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  9. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  10. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  11. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  12. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  13. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  14. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  15. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  16. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  17. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  18. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  19. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  20. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  21. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  22. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  23. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  24. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  25. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  26. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  27. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  28. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  29. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  30. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  31. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  32. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  33. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  34. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  35. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  36. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  37. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  38. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  39. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  40. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  41. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  42. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  43. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  44. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  45. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  46. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  47. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  48. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  49. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  50. 2026-08-16 06:33 UTCEG score recompute
  51. 2026-08-16 06:33 UTCGHSA enrichmentGHSA-7rv8-2hr2-39f9 · GitHub CVSS 5.3
  52. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  53. 2026-08-14 04:39 UTCEG score recompute
  54. 2026-08-14 04:39 UTCGHSA enrichmentGHSA-7rv8-2hr2-39f9 · GitHub CVSS 5.3
  55. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  56. 2026-08-12 18:49 UTCEG score recompute
  57. 2026-08-12 18:49 UTCGHSA enrichmentGHSA-7rv8-2hr2-39f9 · GitHub CVSS 5.3
  58. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  59. 2026-08-11 03:38 UTCEG score recompute
  60. 2026-08-11 03:38 UTCGHSA enrichmentGHSA-7rv8-2hr2-39f9 · GitHub CVSS 5.3
  61. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  62. 2026-08-10 03:47 UTCEG score recompute
  63. 2026-08-10 03:47 UTCGHSA enrichmentGHSA-7rv8-2hr2-39f9 · GitHub CVSS 5.3
  64. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  65. 2026-08-09 03:55 UTCEG score recompute
  66. 2026-08-09 03:55 UTCGHSA enrichmentGHSA-7rv8-2hr2-39f9 · GitHub CVSS 5.3
  67. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  68. 2026-08-07 13:21 UTCEG score recompute
  69. 2026-08-07 13:21 UTCGHSA enrichmentGHSA-7rv8-2hr2-39f9 · GitHub CVSS 5.3
  70. 2026-08-06 13:47 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  71. 2026-08-05 23:19 UTCEG score recompute
  72. 2026-08-05 23:19 UTCGHSA enrichmentGHSA-7rv8-2hr2-39f9 · GitHub CVSS 5.3
  73. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  74. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  75. 2026-08-04 10:39 UTCEPSS rescoreEPSS 0.5% · 41st percentile

Frequently asked(5)

What is CVE-2026-5797?
CVE-2026-5797 is a medium-severity vulnerability; its CVE record was published on April 17, 2026. The Quiz And Survey Master plugin for WordPress is vulnerable to Arbitrary Shortcode Execution in versions up to and including 11.1.0. This is due to insufficient input sanitization and the execution of do_shortcode() on user-submitted quiz answer text. User-submitted answers pass through…
When was the CVE record for CVE-2026-5797 published?
The CVE record for CVE-2026-5797 was published on April 17, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of April 22, 2026; the record at its source may have been updated since.
Is CVE-2026-5797 actively exploited?
CVE-2026-5797 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (44th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-5797?
CVE-2026-5797 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-5797?
No fix for CVE-2026-5797 is confirmed yet. Until one is published, restrict network exposure of the affected system — for example, keep it off the internet or limit it to trusted networks — and watch for a fix. The CVE record's CNA (Wordfence) lists expresstech Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker versions up to and including 10.1.0 as affected. No release containing a fix is confirmed on record.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-5797

Explore →

Is Your Infrastructure Affected by CVE-2026-5797?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.