CVE-2021-4274 sileht bird-lg layout.html cross site scripting

Low 3.5 Published Updated

Remote attackers can execute arbitrary scripts via the request_args parameter in bird-lg, potentially compromising user sessions.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-4274?

CVE-2021-4274 is a low-severity cross-site scripting vulnerability in sileht bird-lg, published on 21 Dec 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-79, CWE-707

Which versions are affected by CVE-2021-4274?

It affects 1 product.

Products include Bird-Lg Project Bird-Lg.

How do I fix CVE-2021-4274?

No fix has been published for CVE-2021-4274 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2021-4274 being exploited?

There is no known exploitation of CVE-2021-4274 in the wild and no public exploit code.

Sources

Also known as GHSA-xjrp-9qff-8prg.

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