CVE-2025-5265
published 2025-05-27CVE-2025-5265: 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…
PriorityP421medium4.8CVSS 3.1
AVLACLPRLUIRSUCLILAL
EPSS
0.17%
6.1th percentile
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
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | — | — |
| debian | firefox-esr | — | — |
| debian | thunderbird | — | — |
| mozilla | firefox | < 115.24.0 | 115.24.0 |
| mozilla | firefox | < 139.0 | 139.0 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= 116.0 < 128.11.0 | 128.11.0 |
| mozilla | thunderbird | >= 0 < 1:128.12.0+build1-0ubuntu0.22.04.1 | 1:128.12.0+build1-0ubuntu0.22.04.1 |
CVSS provenance
nvdv3.14.8MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
osv4.8MEDIUM
vendor_debian4.8LOW
vendor_redhat4.8MEDIUM
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Ubuntu
Thunderbird vulnerabilities
vendor_ubuntu·2025-07-22
CVE-2025-4083 Thunderbird vulnerabilities
Title: Thunderbird vulnerabilities
Summary: Several security issues were fixed in Thunderbird.
Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context, an
attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, bypass security restrictions, cross-site
tracing, or execute arbitrary code.
Instructions: This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart thunderbird to
make all the necessary changes.
Red Hat
firefox: thunderbird: Potential local code execution in “Copy as cURL” command
vendor_redhat·2025-05-27·CVSS 4.8
CVE-2025-5265 [MEDIUM] CWE-116 firefox: thunderbird: Potential local code execution in “Copy as cURL” command
firefox: thunderbird: Potential local code execution in “Copy as cURL” command
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 affects Firefox < 139, Firefox ESR < 115.24, Firefox ESR < 128.11, Thunderbird < 139, and Thunderbird < 128.11.
A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Due to insufficient escaping of the ampersand character in the “Copy as cURL” feature, an attacker could trick a user into using this command, leading to local code execution on the user's
Debian
CVE-2025-5265: firefox - Due to insufficient escaping of the ampersand character in the “Copy as cURL” fe...
vendor_debian·2025·CVSS 4.8
CVE-2025-5265 [MEDIUM] CVE-2025-5265: firefox - Due to insufficient escaping of the ampersand character in the “Copy as cURL” fe...
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 affects Firefox < 139, Firefox ESR < 115.24, Firefox ESR < 128.11, Thunderbird < 139, and Thunderbird < 128.11.
Scope: local
sid: resolved
Mozilla
Mozilla Foundation Security Advisory 2025-45: CVE-2025-5265
vendor_mozilla·CVSS 4.8
CVE-2025-5265 [MEDIUM] Mozilla Foundation Security Advisory 2025-45: CVE-2025-5265
Mozilla Foundation Security Advisory 2025-45
CVE: CVE-2025-5265
Product: Thunderbird
Impact: moderate
Fixed in: Thunderbird 139
Mozilla
Mozilla Foundation Security Advisory 2025-46: CVE-2025-5265
vendor_mozilla·CVSS 4.8
CVE-2025-5265 [MEDIUM] Mozilla Foundation Security Advisory 2025-46: CVE-2025-5265
Mozilla Foundation Security Advisory 2025-46
CVE: CVE-2025-5265
Product: Thunderbird
Impact: moderate
Fixed in: Thunderbird 128.11
Mozilla
Mozilla Foundation Security Advisory 2025-44: CVE-2025-5265
vendor_mozilla·CVSS 4.8
CVE-2025-5265 [MEDIUM] Mozilla Foundation Security Advisory 2025-44: CVE-2025-5265
Mozilla Foundation Security Advisory 2025-44
CVE: CVE-2025-5265
Product: Firefox ESR
Impact: moderate
Fixed in: Firefox ESR 128.11
Mozilla
Mozilla Foundation Security Advisory 2025-42: CVE-2025-5265
vendor_mozilla·CVSS 4.8
CVE-2025-5265 [MEDIUM] Mozilla Foundation Security Advisory 2025-42: CVE-2025-5265
Mozilla Foundation Security Advisory 2025-42
CVE: CVE-2025-5265
Product: Firefox
Impact: moderate
Fixed in: Firefox 139
Mozilla
Mozilla Foundation Security Advisory 2025-43: CVE-2025-5265
vendor_mozilla·CVSS 4.8
CVE-2025-5265 [MEDIUM] Mozilla Foundation Security Advisory 2025-43: CVE-2025-5265
Mozilla Foundation Security Advisory 2025-43
CVE: CVE-2025-5265
Product: Firefox ESR
Impact: moderate
Fixed in: Firefox ESR 115.24
GHSA
GHSA-fjj5-r59g-88g7: Due to insufficient escaping of the ampersand character in the “Copy as cURL” feature, an attacker could trick a user into using this command, potenti
ghsa_unreviewed·2025-05-27
CVE-2025-5265 [MEDIUM] CWE-77 GHSA-fjj5-r59g-88g7: Due to insufficient escaping of the ampersand character in the “Copy as cURL” feature, an attacker could trick a user into using this command, potenti
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 affects Firefox < 139, Firefox ESR < 115.24, and Firefox ESR < 128.11.
OSV
CVE-2025-5265: Due to insufficient escaping of the ampersand character in the “Copy as cURL” feature, an attacker could trick a user into using this command, potenti
osv·2025-05-27·CVSS 4.8
CVE-2025-5265 [MEDIUM] CVE-2025-5265: Due to insufficient escaping of the ampersand character in the “Copy as cURL” feature, an attacker could trick a user into using this command, potenti
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 affects Firefox < 139, Firefox ESR < 115.24, Firefox ESR < 128.11, Thunderbird < 139, and Thunderbird < 128.11.
No detection rules found.
No public exploits indexed.
https://bugzilla.mozilla.org/show_bug.cgi?id=1962301https://www.mozilla.org/security/advisories/mfsa2025-42/https://www.mozilla.org/security/advisories/mfsa2025-43/https://www.mozilla.org/security/advisories/mfsa2025-44/https://www.mozilla.org/security/advisories/mfsa2025-45/https://www.mozilla.org/security/advisories/mfsa2025-46/
2025-05-27
Published