CVE-2018-5249

Severity: medium (CVSS 6.1 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-01-05 · updated 2026-06-17
Weakness: CWE-79

Description

Cross-site scripting (XSS) vulnerability in Shaarli before 0.8.5 and 0.9.x before 0.9.3 allows remote attackers to inject arbitrary code via the login form's username field (aka the login parameter to the ban_canLogin function in index.php).

Affected products

Shaarli: before 0.8.5; from 0.9.0 before 0.9.3 — fixed in 0.8.5, 0.9.3

How to fix

Upgrade to a fixed version: Shaarli 0.8.5, 0.9.3. Check the vendor advisory for mitigations.

References

https://github.com/shaarli/Shaarli/pull/1046
https://github.com/shaarli/Shaarli/releases/tag/v0.8.5
https://github.com/shaarli/Shaarli/releases/tag/v0.9.3
https://github.com/shaarli/Shaarli/pull/1046
https://github.com/shaarli/Shaarli/releases/tag/v0.8.5
https://github.com/shaarli/Shaarli/releases/tag/v0.9.3

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