CVE-2025-43861 ManageWiki Vulnerable to Self-XSS in review dialog via unsanitized field reflection
A logged-in attacker can execute arbitrary JavaScript in their own session via unsanitized input in the ManageWiki review dialog.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-43861?
CVE-2025-43861 is a medium-severity cross-site scripting vulnerability in miraheze ManageWiki, published on 24 Apr 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
ManageWiki is a MediaWiki extension allowing users to manage wikis. Prior to commit 2f177dc, ManageWiki is vulnerable to reflected or stored XSS in the review dialog. A logged-in attacker must change a form field to include a malicious payload. If that same user then opens the "Review Changes" dialog, the payload will be rendered and executed in the context of their own session. This issue has been patched in commit 2f177dc.
Weakness: CWE-79
Which versions are affected by CVE-2025-43861?
It affects 1 product.
Products include Miraheze Managewiki.
How do I fix CVE-2025-43861?
No fix has been published for CVE-2025-43861 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-43861 being exploited?
There is no known exploitation of CVE-2025-43861 in the wild and no public exploit code.
Other vulnerabilities in miraheze ManageWiki
- CVE-2021-29483 wikiconfig API leaked private config variables set through ManageWiki
- CVE-2025-32956 ManageWiki has SQL injection vulnerability in NamespaceMigrationJob
- CVE-2024-25109 Cross-Site Scripting in the extensions, settings, permissions and namespaces subpages of ManageWiki
- CVE-2025-32964 Missing authorization in ManageWiki
Sources
Also known as GHSA-859x-46h8-vcrv.