CVE-2026-30812: Stored Cross-Site Scripting in Event Comments via Filter Bypass

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-13 · updated 2026-06-17
Weakness: CWE-79

Description

Improper Neutralization of Input During Web Page Generation vulnerability allows Stored Cross-Site Scripting via event comments. This issue affects Pandora FMS: from 777 through 800

Affected products

Pandora FMS: from 777 before 800.1 — fixed in 800.1

How to fix

Upgrade to a fixed version: Pandora FMS 800.1. Check the vendor advisory for mitigations.

References

https://pandorafms.com/en/security/common-vulnerabilities-and-exposures/

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