CVE-2017-8814

Name: CVE-2017-8814
Creator: NVD / NIST
Published: 2017-11-15T08:29:00.78+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.61%

Last modified Jun 17, 2026

CVE-2017-8814 is a vulnerability of currently unknown severity. The language converter in MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2 allows attackers to replace text inside tags via a rule definition followed by "a lot of junk.". EPSS estimates a 1.61% chance of exploitation in the next 30 days.

Description

The language converter in MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2 allows attackers to replace text inside tags via a rule definition followed by "a lot of junk."

Metrics

EPSS Probability

1.61%

72.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Mediawiki	Mediawiki	<= 1.27.3
Mediawiki	Mediawiki	1.28.0
Mediawiki	Mediawiki	1.28.1
Mediawiki	Mediawiki	1.28.2
Mediawiki	Mediawiki	1.29.0
Mediawiki	Mediawiki	1.29.1
Debian	Debian Linux	9.0

References

http://www.securitytracker.com/id/1039812Third Party Advisory, VDB Entry
https://lists.wikimedia.org/pipermail/mediawiki-announce/2017-November/000216.htmlMailing List, Patch, Vendor Advisory
https://www.debian.org/security/2017/dsa-4036Third Party Advisory
http://www.securitytracker.com/id/1039812Third Party Advisory, VDB Entry
https://lists.wikimedia.org/pipermail/mediawiki-announce/2017-November/000216.htmlMailing List, Patch, Vendor Advisory
https://www.debian.org/security/2017/dsa-4036Third Party Advisory

Timeline

Published: Nov 15, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-8814?

The language converter in MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2 allows attackers to replace text inside tags via a rule definition followed by "a lot of junk."

How severe is CVE-2017-8814?

Severity scoring for CVE-2017-8814 is pending analysis. The EPSS model estimates a 1.61% probability of exploitation in the next 30 days.

How do I fix CVE-2017-8814?

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-2017-8814?

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

Scan your code now

Source: NVD / NIST