Stored XSS via MMS3 patch metadata (admin context)

published 2026-11-10 yesterday modified 2026-11-10 yesterday also EUVD-2026-122964

cvss: 8.3; version 4.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits: 0; none known

Improper neutralization of HTTP headers for scripting syntax vulnerability in N-able N-central allows Cross-Site Scripting (XSS).

This issue affects N-central: before 26.4.1.

Patch / fix

fixed in 1

N-able N-central 26.4.1

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Exploit prediction

0.47% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by	version	score	vector
CNA	4.0	8.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
CNA	4.0	8.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:H/VI:H/VA:L/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:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

N-able N-central

Classification

Weakness

CWE-644 Improper Neutralization of HTTP Headers for Scripting Syntax

References

me.n-able.com /s/security-advisory/aArVy0000002imXKAQ/cve202612588-stored-xss-via-mms3-patch-metadata-admin-context
vendor-advisory

Sources

CVE List CVE-2026-125880
NVD CVE-2026-125880

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