Cross-site scripting in Shaarli - CVE-2026-24476
Published: February 13, 2026
Vulnerability identifier: #VU122810
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2026-24476
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Affected software
Shaarli
Debian Linux
shaarli (Debian package)
Debian Linux
shaarli (Debian package)
How to mitigate CVE-2026-24476
Install updates from vendor's website.
Shaarli - update to 0.16.0
shaarli (Debian package) - addressed in versions 0.12.1+dfsg-8+deb12u2, 0.14.0+dfsg-2+deb13u1
shaarli (Debian package) - addressed in versions 0.12.1+dfsg-8+deb12u2, 0.14.0+dfsg-2+deb13u1