CVE-2021-4253 json
ctrlo lenio Ticket Lenio.pm cross site scripting
published 2022-12-18 3 y ago modified 2026-06-17 4 mo ago also EUVD-2021-34099
- cvss
- 3.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 36%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 18 mo ago
Exploit prediction
0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected products
- ctrlo lenio
Classification
- Weakness
-
- CWE-707 Improper Neutralization
References
-
github.com
/ctrlo/lenio/commit/7a1f90bd2a0ce95b8338ec0926902da975ec64d9
patch, third-party-advisory
-
vuldb.com
/?id.216210
permissions-required, third-party-advisory
Sources
- CVE List CVE-2021-4253
- NVD CVE-2021-4253
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