CVE-2021-24831

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-01-04. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.5Exploit: NoneExposed: 0

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

All AJAX actions of the Tab WordPress plugin before 1.3.2 are available to both unauthenticated and authenticated users, allowing unauthenticated attackers to modify various data in the plugin, such as add/edit/delete arbitrary tabs.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
64.8%
KEV
Not listed

Published

January 3, 2022

Last Modified

November 21, 2024

References (2)

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 49× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

  1. 2026-07-23 01:58 UTCEG score recompute
  2. 2026-07-22 22:45 UTCEG score recompute
  3. 2026-07-22 14:06 UTCEPSS rescore
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  72. 2026-05-26 05:25 UTCEG score recompute
  73. 2026-05-26 05:25 UTCGHSA enrichment
  74. 2026-05-25 16:46 UTCOSV refresh
  75. 2026-05-24 16:49 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2021-24831?
CVE-2021-24831 is a high vulnerability published on January 3, 2022. All AJAX actions of the Tab WordPress plugin before 1.3.2 are available to both unauthenticated and authenticated users, allowing unauthenticated attackers to modify various data in the plugin, such as add/edit/delete arbitrary tabs.
When was CVE-2021-24831 disclosed?
CVE-2021-24831 was first published in the National Vulnerability Database on January 3, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-24831 actively exploited?
CVE-2021-24831 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 64.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2021-24831?
CVE-2021-24831 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2021-24831?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-24831, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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