CVE-2005-4501

4.3 MEDIUM 1% exploit odds Fix listed

What it is

MediaWiki before 1.5.4 uses a hard-coded "internal placeholder string", which allows remote attackers to bypass protection against cross-site scripting (XSS) attacks and execute Javascript using inline style attributes, which are processed by Internet Explorer.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 1.4% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2005-12-22 21:03 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 22:18 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 1.4% in the next 30 days (EPSS).
Severity: 4.3 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2005-12-22 21:03 UTC
Last modified: 2026-06-16 22:18 UTC
Exploit probability: 1.4% · EPSS, next 30 days
Record status: Modified

Affected

Mediawiki ≤ 1.5.3
Mediawiki 1.1.0
Mediawiki 1.2.0
Mediawiki 1.2.1
Mediawiki 1.2.2
Mediawiki 1.2.3
Mediawiki 1.2.4
Mediawiki 1.2.5

Attack profile CVSS 2.0 · 4.3

Attack vector: Network
Complexity: Medium
Authentication: None
Confidentiality: None
Integrity: Partial
Availability: None

Raw vector

AV:N/AC:M/Au:N/C:N/I:P/A:N

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2005-4501.md and follow it. Check whether this project is affected by CVE-2005-4501. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record