CVE-2025-25287 json
Lakeus vulnerable to stored XSS via system messages
published 2025-02-13 20 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-4101
- cvss
- 4.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 30%
- public exploits
- 0
- none known
Summary
Lakeus is a simple skin made for MediaWiki. Starting in version 1.0.8 and prior to versions 1.3.1+REL1.39, 1.3.1+REL1.42, and 1.4.0, Lakeus is vulnerable to store cross-site scripting via malicious system messages, though editing the messages requires high privileges. Those with `(editinterface)` rights can edit system messages that are improperly handled in order to send raw HTML. In the case of `lakeus-footermessage`, this will affect all users if the server is configured to link back to this repository. Otherwise, the system messages in themeDesigner.js are only used when the user enables it in their preferences. Versions 1.3.1+REL1.39, 1.3.1+REL1.42, and 1.4.0 contain a patch.
Patch / fix
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 20 mo ago
Exploit prediction
0.37% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L |
Affected products
- lakejason0 mediawiki-skins-Lakeus
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
- github.com /lakejason0/mediawiki-skins-Lakeus/commit/fb79928f06efa47677fff27e0f4755eb32b1c8d9
- github.com /lakejason0/mediawiki-skins-Lakeus/security/advisories/GHSA-mq77-3q68-v64v
- github.com /lakejason0/mediawiki-skins-Lakeus/blob/82ad2cd341f85b814a6a0f37969e6210ebf2521d/includes/SkinLakeus.php#L27
- github.com /lakejason0/mediawiki-skins-Lakeus/blob/82ad2cd341f85b814a6a0f37969e6210ebf2521d/resources/themeDesigner.js
Sources
- CVE List CVE-2025-25287
- NVD CVE-2025-25287
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.