CVE-2025-25303 Server-Side Request Forgery (SSRF) in MouseTooltipTranslator
An attacker can force the user's browser to make requests to arbitrary URLs via the MouseTooltipTranslator extension, potentially accessing internal resources.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-25303?
CVE-2025-25303 is a medium-severity server-side request forgery vulnerability in ttop32 MouseTooltipTranslator, published on 3 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The MouseTooltipTranslator Chrome extension allows mouseover translation of any language at once. The MouseTooltipTranslator browser extension is vulnerable to SSRF attacks. The pdf.mjs script uses the URL parameter from the current URL as the file to download and display to the extension user. Because pdf.mjs is imported in viewer.html and viewer.html is accessible to all URLs, an attacker can force the user’s browser to make a request to any arbitrary URL. After discussion with maintainer, patching this issue would require disabling a major feature of the extension in exchange for a low severity vulnerability. Decision to not patch issue.
Weakness: CWE-918
Which versions are affected by CVE-2025-25303?
How do I fix CVE-2025-25303?
No fix has been published for CVE-2025-25303 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2025-25303 being exploited?
There is no known exploitation of CVE-2025-25303 in the wild and no public exploit code.