4.8
Medium
CVE-2025-5265 Due to insufficient escaping of the ampersand character in the “Copy as cURL” feature, an attacker could trick a user…
Description
Due to insufficient escaping of the ampersand character in the “Copy as cURL” feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user's system. *This bug only affects Firefox for Windows. Other versions of Firefox are unaffected.*. This vulnerability was fixed in Firefox 139, Firefox ESR 115.24, Firefox ESR 128.11, Thunderbird 139, and Thunderbird 128.11.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox 139 | earliest → < 139 | 139 |
| Firefox 128.11 | earliest → < 128.11 | 128.11 |
| Firefox 115.24 | earliest → < 115.24 | 115.24 |
| Firefox ESR 128.11 | earliest → < 128.11 | 128.11 |
| Thunderbird 139 | earliest → < 139 | 139 |
| Thunderbird 128.11 | earliest → < 128.11 | 128.11 |
References
- bugzilla.mozilla.org bugzilla.mozilla.org
- www.mozilla.org www.mozilla.org
- www.mozilla.org www.mozilla.org
- www.mozilla.org www.mozilla.org
- www.mozilla.org www.mozilla.org
- www.mozilla.org www.mozilla.org
Timeline
- Published
- Last modified
Other CVEs of Firefox
The 2221 CVEs of Firefox →
CVE-2026-120572
Incorrect boundary conditions in the Layout: Block and Inline component
8.8
High
CVE-2026-118027
Frame poisoning in the Layout component
9.1
Critical
CVE-2026-118024
Use-after-free in the Graphics: Text component
8.8
High
CVE-2026-118026
Invalid pointer in the JavaScript: GC component
8.8
High