CVE-2022-24734

HIGHNVD 7.28.8
EchelonGraph scoreHIGH confidence

“▲” beside the score: it is higher than NVD's CVSS score.

Score elevated to 8.8 because EPSS predicted 78% probability of exploitation within the next 30 days (99th percentile of EPSS-scored CVEs) when EchelonGraph scored this CVE. NVD baseline CVSS 7.2 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction (continuous uplift above 30%)
Sources: EPSS, NVD CVSS v3
Weaponized

Also known asEUVD-2022-29581 (ENISA EUVD)Source: ENISA EUVD

8.8EG
EchelonGraph verdictPlan mitigationNo release containing the referenced fix is confirmed: check the referenced fix and the vendor's advisory for a release that contains it; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High exploitation likelihood — EPSS 78%
  • Public exploit code is available (Metasploit, other public proof-of-concept code)
CISA-KEV: Not listedEPSS PROB: 78%CVSS: 7.2Exploit: Metasploit · other public PoCExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

MyBB is a free and open source forum software. In affected versions the Admin CP's Settings management module does not validate setting types correctly on insertion and update, making it possible to add settings of supported type php with PHP code, executed on on _Change Settings_ pages. This results in a Remote Code Execution (RCE) vulnerability. The vulnerable module requires Admin CP access with the Can manage settings? permission. MyBB's Settings module, which allows administrators to add, edit, and delete non-default settings, stores setting data in an options code string ($options_code; mybb_settings.optionscode database column) that identifies the setting type and its options, separated by a new line character (\n). In MyBB 1.2.0, support for setting type php was added, for which the remaining part of the options code is PHP code executed on Change Settings pages (reserved for plugins and internal use). MyBB 1.8.30 resolves this issue. There are no known workarounds.

CVSS v3
7.2
EG Score
8.8HIGHhigh confidence
EG Risk
64
EG Risk 64/100

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)
Severity72% × 45%
Impact severity (EG Severity): CVSS 7.2 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation78% × 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 low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high.
EPSS PROB
78%
EPSS %ILE
99th
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 (8.8): severity, escalated by confirmed exploitation. This CVE's 8.8 is EPSS's lift toward 9.0 from its impact severity (EG Severity, CVSS 7.2 HIGH): a likelihood of exploitation, not impact.

EG Severity
7.2 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
78% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-27). 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, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 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 low, Track* at medium and Attend at high mission impact.

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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)14 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 total (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

March 9, 2022

Last Modified

November 21, 2024

References (6)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 24× 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 85 of 103 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. 15 repeat rows among the latest 100 are merged into the row they repeat. The 18 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-31 16:29 UTCEPSS rescoreEPSS 78% · 99th percentile
  2. 2026-10-29 16:29 UTCEPSS rescoreEPSS 78% · 99th percentile
  3. 2026-10-28 04:30 UTCEG score recompute
  4. 2026-10-27 16:28 UTCEPSS rescoreEPSS 78% · 99th percentile
  5. 2026-10-26 16:28 UTCEPSS rescoreEPSS 78% · 99th percentile
  6. 2026-10-25 18:12 UTCEG score recompute
  7. 2026-10-25 16:29 UTCEPSS rescoreEPSS 78% · 99th percentile
  8. 2026-10-24 16:29 UTCEPSS rescoreEPSS 78% · 99th percentile
  9. 2026-10-22 16:30 UTCEPSS rescoreEPSS 78% · 99th percentile
  10. 2026-10-21 16:28 UTCEPSS rescoreEPSS 78% · 99th percentile
  11. 2026-10-21 07:49 UTCEG score recompute
  12. 2026-10-20 16:29 UTCEPSS rescoreEPSS 78% · 99th percentile
  13. 2026-10-18 08:41 UTCEG score recompute
  14. 2026-10-17 01:24 UTCOSV refresh
  15. 2026-10-16 16:34 UTCEPSS rescoreEPSS 78% · 99th percentile
  16. 2026-10-15 16:28 UTCEPSS rescoreEPSS 78% · 99th percentile
  17. 2026-10-14 16:29 UTCEPSS rescoreEPSS 78% · 99th percentile
  18. 2026-10-13 16:29 UTCEPSS rescoreEPSS 78% · 99th percentile
  19. 2026-10-12 18:58 UTCEG score recompute
  20. 2026-10-11 23:24 UTCEG score recompute
  21. 2026-10-09 20:04 UTCEPSS rescoreEPSS 78% · 99th percentile
  22. 2026-10-07 23:45 UTCEPSS rescoreEPSS 78% · 99th percentile
  23. 2026-10-06 15:14 UTCEPSS rescoreEPSS 78% · 99th percentile
  24. 2026-10-03 14:22 UTCEPSS rescoreEPSS 78% · 99th percentile
  25. 2026-09-30 15:51 UTCEG score recompute
Show 60 more
  1. 2026-09-30 15:00 UTCEPSS rescoreEPSS 78% · 99th percentile
  2. 2026-09-25 03:24 UTCOSV refresh
  3. 2026-09-24 14:00 UTCEPSS rescoreEPSS 78% · 99th percentile
  4. 2026-09-17 19:23 UTCEPSS rescoreEPSS 78% · 99th percentile
  5. 2026-09-16 14:05 UTCEPSS rescoreEPSS 78% · 99th percentile
  6. 2026-09-15 03:06 UTCEPSS rescoreEPSS 78% · 99th percentile
  7. 2026-09-12 14:57 UTCEPSS rescoreEPSS 78% · 99th percentile
  8. 2026-09-11 14:49 UTCEPSS rescoreEPSS 78% · 99th percentile
  9. 2026-09-06 13:45 UTCEPSS rescoreEPSS 78% · 99th percentile
  10. 2026-09-05 18:55 UTCOSV refresh
  11. 2026-09-05 15:25 UTCEPSS rescoreEPSS 78% · 99th percentile
  12. 2026-09-04 13:57 UTCEPSS rescoreEPSS 78% · 99th percentile
  13. 2026-09-02 14:09 UTCEPSS rescoreEPSS 78% · 99th percentile
  14. 2026-08-30 19:14 UTCEPSS rescoreEPSS 78% · 99th percentile
  15. 2026-08-28 21:38 UTCEPSS rescoreEPSS 78% · 99th percentile
  16. 2026-08-26 14:43 UTCEPSS rescoreEPSS 78% · 99th percentile
  17. 2026-08-25 13:46 UTCEPSS rescoreEPSS 78% · 99th percentile
  18. 2026-08-24 14:13 UTCEPSS rescoreEPSS 78% · 99th percentile
  19. 2026-08-20 22:52 UTCEPSS rescoreEPSS 78% · 99th percentile
  20. 2026-08-19 17:01 UTCEPSS rescoreEPSS 78% · 99th percentile
  21. 2026-08-19 05:59 UTCOSV refresh
  22. 2026-08-18 13:45 UTCEPSS rescoreEPSS 78% · 99th percentile
  23. 2026-08-16 02:11 UTCEPSS rescoreEPSS 78% · 99th percentile
  24. 2026-08-15 01:27 UTCEPSS rescoreEPSS 78% · 99th percentile
  25. 2026-08-12 13:48 UTCEPSS rescoreEPSS 78% · 99th percentile
  26. 2026-08-08 16:34 UTCEPSS rescoreEPSS 78% · 99th percentile
  27. 2026-08-05 19:15 UTCEPSS rescoreEPSS 78% · 99th percentile
  28. 2026-08-04 01:57 UTCOSV refresh
  29. 2026-08-02 02:24 UTCEPSS rescoreEPSS 78% · 99th percentile
  30. 2026-07-30 16:25 UTCEPSS rescoreEPSS 78% · 99th percentile
  31. 2026-07-28 15:33 UTCEPSS rescoreEPSS 78% · 99th percentile
  32. 2026-07-26 14:52 UTCEPSS rescoreEPSS 78% · 99th percentile
  33. 2026-07-24 14:15 UTCEPSS rescoreEPSS 78% · 99th percentile
  34. 2026-07-23 02:09 UTCEG score recompute▲ 1.60
  35. 2026-07-22 22:56 UTCEG score recompute
  36. 2026-07-22 14:06 UTCEPSS rescoreEPSS 78% · 99th percentile
  37. 2026-07-21 15:22 UTCEPSS rescoreEPSS 78% · 99th percentile
  38. 2026-07-20 17:05 UTCEPSS rescoreEPSS 78% · 99th percentile
  39. 2026-07-17 20:59 UTCOSV refresh
  40. 2026-07-15 16:56 UTCEPSS rescoreEPSS 78% · 99th percentile
  41. 2026-07-13 22:27 UTCEPSS rescoreEPSS 78% · 99th percentile
  42. 2026-07-11 08:25 UTCEPSS rescoreEPSS 78% · 99th percentile
  43. 2026-07-09 19:07 UTCEPSS rescoreEPSS 78% · 99th percentile
  44. 2026-07-05 02:28 UTCEPSS rescoreEPSS 78% · 99th percentile
  45. 2026-06-30 23:20 UTCEPSS rescoreEPSS 78% · 99th percentile
  46. 2026-06-29 18:53 UTCOSV refresh
  47. 2026-06-29 14:04 UTCEPSS rescoreEPSS 78% · 99th percentile
  48. 2026-06-28 04:54 UTCEPSS rescoreEPSS 78% · 99th percentile
  49. 2026-06-25 13:48 UTCEPSS rescoreEPSS 78% · 99th percentile
  50. 2026-06-23 21:31 UTCEPSS rescoreEPSS 78% · 99th percentile
  51. 2026-06-21 14:55 UTCEPSS rescoreEPSS 78% · 99th percentile
  52. 2026-06-21 01:58 UTCEPSS rescoreEPSS 78% · 99th percentile
  53. 2026-06-17 17:51 UTCEPSS rescoreEPSS 78% · 99th percentile
  54. 2026-06-16 17:51 UTCEPSS rescoreEPSS 78% · 99th percentile
  55. 2026-06-15 17:46 UTCEPSS rescoreEPSS 78% · 99th percentile
  56. 2026-06-12 23:10 UTCEPSS rescoreEPSS 82% · 99th percentile
  57. 2026-06-12 07:36 UTCOSV refresh
  58. 2026-06-11 13:58 UTCEPSS rescoreEPSS 82% · 99th percentile
  59. 2026-06-10 22:16 UTCEPSS rescoreEPSS 82% · 99th percentile
  60. 2026-06-08 14:15 UTCEPSS rescoreEPSS 82% · 99th percentile

Publicly available exploits

(3 references)

Public exploit code is referenced for this CVE (1 Metasploit module, 1 Exploit-DB entry, 1 GitHub PoC). No release with the fix is confirmed, so defenders should restrict or isolate affected systems accordingly until one is applied.

  • Metasploitexploit/multi/http/mybb_rce_cve_2022_24734✓ verified
    Published May 31, 2022

    MyBB Admin Control Code Injection RCE

    Open source ↗
  • Exploit-DBEDB-50924
    Published May 11, 2022

    MyBB 1.8.29 - MyBB 1.8.29 - Remote Code Execution (RCE) (Authenticated)

    Open source ↗
  • GitHub PoCAltelus1/CVE-2022-24734
    Published May 8, 2022

    CVE-2022-24734 PoC

    Open source ↗

Frequently asked(5)

What is CVE-2022-24734?
CVE-2022-24734 is a high-severity vulnerability; its CVE record was published on March 9, 2022. MyBB is a free and open source forum software. In affected versions the Admin CP's Settings management module does not validate setting types correctly on insertion and update, making it possible to add settings of supported type php with PHP code, executed on on Change Settings pages. This results…
When was the CVE record for CVE-2022-24734 published?
The CVE record for CVE-2022-24734 was published on March 9, 2022. 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 November 21, 2024; the record at its source may have been updated since.
Is CVE-2022-24734 actively exploited?
CVE-2022-24734 is not currently on CISA's Known Exploited Vulnerabilities catalog. EchelonGraph's EG-KEV model places it in Tier 2 (Weaponized), which is not evidence of exploitation: a Metasploit module exists for it, and CISA's SSVC data says a public PoC exists and its EPSS is 50% or more. EchelonGraph does not test whether exploit code works. FIRST EPSS estimates a 78% probability of exploitation in the next 30 days (99th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2022-24734?
CVE-2022-24734 has a CVSS v3 base score of 7.2 (NVD). EchelonGraph synthesises NVD + FIRST EPSS into a combined EG score of 8.8 (HIGH).
How do I remediate CVE-2022-24734?
A fix for CVE-2022-24734 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2022-24734

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