Stored Cross-Site Scripting via Directory Name in File Manager Create Directory

published 2026-10-01 38 d ago modified 2026-10-01 38 d ago also EUVD-2026-90599

cvss: 8.4; version 4.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 16%
public exploits: 0; none known

Missing input validation and output encoding on the directory name parameter in File Manager's Create Directory allows stored XSS, executing without user interaction. Affects Pandora FMS from 777 onwards.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 38 d ago (2026-10-01)

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	4.0	8.4	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/S:N/AU:Y/R:U/V:C/RE:L/U:Amber
CNA	4.0	8.4	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:U/V:C/RE:L/U:Amber

Affected products

Pandora FMS Pandora FMS

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

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

Sources

CVE List CVE-2026-64950
NVD CVE-2026-64950

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary