CVE-2021-4274

Name: CVE-2021-4274
Creator: NVD / NIST
Published: 2022-12-21T19:15:14.257+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.50%

Last modified Jun 17, 2026

CVE-2021-4274 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. A vulnerability, which was classified as problematic, has been found in sileht bird-lg. This issue affects some unknown processing of the file templates/layout.html. EPSS estimates a 0.50% chance of exploitation in the next 30 days.

Description

A vulnerability, which was classified as problematic, has been found in sileht bird-lg. This issue affects some unknown processing of the file templates/layout.html. The manipulation of the argument request_args leads to cross site scripting. The attack may be initiated remotely. The name of the patch is ef6b32c527478fefe7a4436e10b96ee28ed5b308. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-216479.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.50%

39.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Bird-Lg Project	Bird-Lg	All versions

References

https://github.com/sileht/bird-lg/commit/ef6b32c527478fefe7a4436e10b96ee28ed5b308Patch, Third Party Advisory
https://github.com/sileht/bird-lg/pull/82Patch, Third Party Advisory
https://vuldb.com/?id.216479Third Party Advisory
https://github.com/sileht/bird-lg/commit/ef6b32c527478fefe7a4436e10b96ee28ed5b308Patch, Third Party Advisory
https://github.com/sileht/bird-lg/pull/82Patch, Third Party Advisory
https://vuldb.com/?id.216479Third Party Advisory

Timeline

Published: Dec 21, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-4274?

How severe is CVE-2021-4274?

CVE-2021-4274 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.

How do I fix CVE-2021-4274?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-4274?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST