How severe is CVE-2026-96879?

CVE-2026-96879 has a CVSS 4.0 base score of 6.9, rated medium severity.

Is CVE-2026-96879 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-96879?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-96879 published?

CVE-2026-96879 was published on 2026-09-25 and last updated on 2026-09-29.

CVE-2026-96879

CVE-2026-96879 is a medium-severity vulnerability with a CVSS 4.0 base score of 6.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-212.

Key facts

Severity: Medium (CVSS 4.0 base score 6.9)
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-212
Published: 2026-09-25
Last modified: 2026-09-29

Description

Improper removal of sensitive information before storage or transfer vulnerability in Wikimedia Foundation's Mediawiki - FlaggedRevs extension through 1.46.0.

Frequently asked questions

What is CVE-2026-96879?: Improper removal of sensitive information before storage or transfer vulnerability in Wikimedia Foundation's Mediawiki - FlaggedRevs extension through 1.46.0.
How severe is CVE-2026-96879?: CVE-2026-96879 has a CVSS 4.0 base score of 6.9, rated medium severity.
Is CVE-2026-96879 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-96879?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-96879 published?: CVE-2026-96879 was published on 2026-09-25 and last updated on 2026-09-29.

References

Other CWE-212 vulnerabilities

CVE-2022-2818 — Critical (CVSS 9.8): Improper Removal of Sensitive Information Before Storage or Transfer in GitHub repository cockpit-hq/cockpit prior to…
CVE-2020-11684 — Critical (CVSS 9.1): AT91bootstrap before 3.9.2 does not properly wipe encryption and authentication keys from memory before passing control…
CVE-2026-85094 — High (CVSS 8.8): The Canva Android App before 2.376.0 did not restrict the headers returned to an external origin running in a…
CVE-2026-39937 — High (CVSS 8.8): Improper removal of sensitive information before storage or transfer vulnerability in The Wikimedia Foundation…
CVE-2022-30617 — High (CVSS 8.8): An authenticated user with access to the Strapi admin panel can view private and sensitive data, such as email and…
CVE-2022-0355 — High (CVSS 8.8): Improper Removal of Sensitive Information Before Storage or Transfer in NPM simple-get prior to 4.0.1.

Browse all CWE-212 vulnerabilities →