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GHSA-f633-865q-2mhh

HighCVSS 7.5 / 10

Published May 11, 2026·Last modified May 11, 2026

Affected Components(0)

No affected components available

Description

Incorrect escaping of a saved filter's owner allows an attacker to inject arbitrary HTML on systems where $g_show_user_realname = ON.

Impact

Cross-site scripting (XSS).

Note that By default, only users with Manager access level or above can save their filters publicly

Patches

44f490bcf20fd491c1b8f3fc9dd041d8c2a30010

Workarounds

Prevent display of users' real name (set $g_ show_user_realname = OFF; in configuration)
Restrict ability to store filters (set $g_stored_query_create_threshold / $g_stored_query_create_shared_threshold to NOBODY

Credits

Thanks to siunam (Tang Cheuk Hei) for discovering and responsibly reporting the issue.

Risk Scores

Base Score

7.5

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs high-level or administrative privileges. No user interaction is needed for the attacker to exploit this vulnerability.

Threat Intelligence

4.6

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS

0.42%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit

Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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High severity

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