CSRF Bypass Leading to Stored Cross-Site Scripting via Unrestricted SVG Upload in File Manager

published 2026-10-01 38 d ago modified 2026-10-01 38 d ago also EUVD-2026-90593

cvss: 7.4; 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 4%
public exploits: 0; none known

A chained CSRF and unrestricted SVG file upload vulnerability in the File Manager module allows stored Cross-Site Scripting, enabling session cookie exfiltration and administrator account takeover. This issue affects Pandora FMS: from 777 onwards.

CISA SSVC

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

Exploit prediction

0.16% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	4.0	7.4	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/S:N/AU:Y/R:U/V:C/RE:M/U:Amber
CNA	4.0	7.4	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/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:M/U:Amber

Affected products

Pandora FMS Pandora FMS

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation
CWE-352 Cross-Site Request Forgery

References

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

Sources

CVE List CVE-2026-64946
NVD CVE-2026-64946

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