CVE-2021-4256
Published: 18 December 2022
Summary
CVE-2021-4256 is a low-severity Improper Neutralization (CWE-707) vulnerability in Ctrlo Lenio. Its CVSS base score is 3.5 (Low).
Operationally, ranked at the 43.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-34102
Vulnerability details
A vulnerability was found in ctrlo lenio. It has been classified as problematic. This affects an unknown part of the file views/index.tt. The manipulation of the argument task.name/task.site.org.name leads to cross site scripting. It is possible to initiate the attack…
more
remotely. The name of the patch is e1646d5cd0a2fbab9eb505196dd2ca1c9e4cdd97. It is recommended to apply a patch to fix this issue. The identifier VDB-216213 was assigned to this vulnerability.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Enforces use of documented standards and tool configurations that address proper neutralization of inputs/outputs during development.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.