TI-2021-03113 Aliases CVE-2021-4255 GHSA-r6mp-jcx4-hxp5

ctrlo lenio contractor.tt cross site scripting

LOW 28CWE-707Published 2022-12-18 · Updated 2025-04-15

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

A vulnerability was found in ctrlo lenio and classified as problematic. Affected by this issue is some unknown functionality of the file views/contractor.tt. The manipulation of the argument contractor.name leads to cross site scripting. The attack may be launched remotely. The name of the patch is e1646d5cd0a2fbab9eb505196dd2ca1c9e4cdd97. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-216212.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00418 36th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
ctrlo	lenio	all versions	—	No fix listed	CNA

lenio Vendorctrlo Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:ctrlo:lenio::::::::	before 2021-02-08	Vulnerable	ctrlo

cpe:2.3:a:ctrlo:lenio:*:*:*:*:*:*:*:* Versions before 2021-02-08 Vulnerable ·ctrlo

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-4255
2026-10-03 Alias added: GHSA-r6mp-jcx4-hxp5

References

Patch 1

https://github.com/ctrlo/lenio/commit/e1646d5cd0a2fbab9eb505196dd2ca1c9e4cdd97

TI-2021-03115 ctrlo lenio Task task.tt cross site scripting CVSS 3.1MEDIUM 6.1
TI-2021-03114 ctrlo lenio index.tt cross site scripting CVSS 3.1MEDIUM 6.1
TI-2021-03112 ctrlo lenio Notice main.tt cross site scripting CVSS 3.1MEDIUM 6.1
TI-2021-03111 ctrlo lenio Ticket Lenio.pm cross site scripting CVSS 3.1MEDIUM 6.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences