What’s Vulnerable › Vulnerabilities

CVE-2021-4253: ctrlo lenio Ticket Lenio.pm cross site scripting

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-12-18 · updated 2026-06-17
• Weakness: CWE-707

Description

A vulnerability, which was classified as problematic, was found in ctrlo lenio. Affected is an unknown function in the library lib/Lenio.pm of the component Ticket Handler. The manipulation of the argument site_id leads to cross site scripting. It is possible to launch the attack remotely. The name of the patch is 7a1f90bd2a0ce95b8338ec0926902da975ec64d9. It is recommended to apply a patch to fix this issue. VDB-216210 is the identifier assigned to this vulnerability.

Affected products

• ctrlo lenio: before 2021-02-09 — fixed in 2021-02-09

How to fix

Upgrade to a fixed version: ctrlo lenio 2021-02-09. Check the vendor advisory for mitigations.

References

• https://github.com/ctrlo/lenio/commit/7a1f90bd2a0ce95b8338ec0926902da975ec64d9
• https://vuldb.com/?id.216210
• https://github.com/ctrlo/lenio/commit/7a1f90bd2a0ce95b8338ec0926902da975ec64d9
• https://vuldb.com/?id.216210

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