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CVE-2021-41800

MEDIUMCVSS 5.3/10EPSS 1.74%

Last modified

CVE-2021-41800 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. MediaWiki before 1.36.2 allows a denial of service (resource consumption because of lengthy query processing time). Visiting Special:Contributions can sometimes result in a long running SQL query because PoolCounter protection is mishandled.. EPSS estimates a 1.74% chance of exploitation in the next 30 days.

Description

MediaWiki before 1.36.2 allows a denial of service (resource consumption because of lengthy query processing time). Visiting Special:Contributions can sometimes result in a long running SQL query because PoolCounter protection is mishandled.

Metrics

CVSS 3.1
5.3/10

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

EPSS Probability
1.74%

74.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
MediawikiMediawiki< 1.36.2
FedoraprojectFedora33
FedoraprojectFedora34
FedoraprojectFedora35

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-41800?
MediaWiki before 1.36.2 allows a denial of service (resource consumption because of lengthy query processing time). Visiting Special:Contributions can sometimes result in a long running SQL query because PoolCounter protection is mishandled.
How severe is CVE-2021-41800?
CVE-2021-41800 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.74% probability of exploitation in the next 30 days.
How do I fix CVE-2021-41800?
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-2021-41800?

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

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Source: NVD / NIST