# CVE-2026-125880: N-able N-central cross-site scripting in HTTP headers

Source: https://junglewise.ai/threats/cve-2026-125880-improper-neutralization-of-http-headers-for-scripting-syntax  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-10. Updated: 2026-11-10  
License: CC BY 4.0 with a link back

CVE-2026-125880 · Severity: info · Published 2026-11-10

N-able N-central is remote management software used by IT service providers to monitor and maintain customer systems. An improper neutralization of HTTP headers allows an attacker to inject malicious scripts that execute in users' browsers, potentially leading to session hijacking, credential theft, or unauthorized actions within the platform.

Technologies: [N-able N-central](https://junglewise.ai/threats/technologies/n-central). Vendors: [N-able](https://junglewise.ai/threats/vendors/n-able).

## Quick answers

**Is CVE-2026-125880 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-125880 being exploited in the wild.

**How severe is CVE-2026-125880?** Informational severity, published 10 November 2026.

**Which products and versions are affected?** N-able N-central before 26.4.1.

**Is there a fix for CVE-2026-125880?** Yes: fixed in N-central 26.4.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-125880 attacked?** It is in a web application.

**Am I affected by CVE-2026-125880?** Check whether you run N-able N-central at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in N-central 26.4.1

## Technical details

The vulnerability is an improper neutralization of HTTP headers for scripting syntax, allowing reflected or stored cross-site scripting (XSS). The attack vector appears to involve HTTP headers in the MMS3 patch metadata admin context. Successful exploitation requires an attacker to craft a malicious request with crafted headers or to inject data into the system that reaches an administrative interface.

## Affected products

- N-able N-central before 26.4.1

## Timeline

- 2026-11-10: disclosed

## References

- [https://me.n-able.com/s/security-advisory/aArVy0000002imXKAQ/cve202612588-stored-xss-via-mms3-patch-metadata-admin-context](https://me.n-able.com/s/security-advisory/aArVy0000002imXKAQ/cve202612588-stored-xss-via-mms3-patch-metadata-admin-context)

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