CVE-2021-42049

MEDIUMNVD 6.56.5—

6.5

An issue was discovered in the Translate extension in MediaWiki through 1.36.2. Oversighters cannot undo revisions or oversight on pages where they suppressed information (such as PII). This allows oversighters to whitewash revisions.

CVSS v3: 6.5
EG Score: 6.5(medium)
EPSS: 56.4%
KEV: Not listed

Published

September 29, 2022

Last Modified

November 21, 2024

References (4)

cve@mitrehttps://gerrit.wikimedia.org/r/q/I4d95220ef414337147235f7ebedc9b945c3348e3
cve@mitrehttps://phabricator.wikimedia.org/T286884
af854a3a-2127-422b-91ae-364da2661108https://gerrit.wikimedia.org/r/q/I4d95220ef414337147235f7ebedc9b945c3348e3
af854a3a-2127-422b-91ae-364da2661108https://phabricator.wikimedia.org/T286884

Data Freshness Timeline

(refreshed 12× in last 7d / 20× 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.

2026-06-08 14:15 UTCEPSS rescore
2026-06-08 14:15 UTCEPSS rescore
2026-06-07 19:16 UTCOSV refresh
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore

Frequently asked(5)

What is CVE-2021-42049?

CVE-2021-42049 is a medium vulnerability published on September 29, 2022. An issue was discovered in the Translate extension in MediaWiki through 1.36.2. Oversighters cannot undo revisions or oversight on pages where they suppressed information (such as PII). This allows oversighters to whitewash revisions.

When was CVE-2021-42049 disclosed?

CVE-2021-42049 was first published in the National Vulnerability Database on September 29, 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-2021-42049 actively exploited?

CVE-2021-42049 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 56.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-42049?

CVE-2021-42049 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2021-42049?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-42049, 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.

Dependency Blast Radius

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CVE-2021-42049

📅 Published

🔄 Last Modified

🔗 References (4)