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CVE-2021-41801

HIGHCVSS 8.8/10EPSS 1.12%

Last modified

CVE-2021-41801 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. The ReplaceText extension through 1.41 for MediaWiki has Incorrect Access Control. When a user is blocked after submitting a replace job, the job is still run, even if it may be run at a later time (due to the job queue backlog). EPSS estimates a 1.12% chance of exploitation in the next 30 days.

Description

The ReplaceText extension through 1.41 for MediaWiki has Incorrect Access Control. When a user is blocked after submitting a replace job, the job is still run, even if it may be run at a later time (due to the job queue backlog)

Metrics

CVSS 3.1
8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
1.12%

62.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
MediawikiMediawiki< 1.31.16
MediawikiMediawiki>= 1.35.0, < 1.35.4
MediawikiMediawiki>= 1.36.0, < 1.36.2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-41801?
The ReplaceText extension through 1.41 for MediaWiki has Incorrect Access Control. When a user is blocked after submitting a replace job, the job is still run, even if it may be run at a later time (due to the job queue backlog)
How severe is CVE-2021-41801?
CVE-2021-41801 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.12% probability of exploitation in the next 30 days.
How do I fix CVE-2021-41801?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-41801?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST