CVE-2025-8461 Reflected XSS in Seres Software's syWEB
Reflected XSS in Seres Software syWEB allows attackers to inject scripts, potentially leading to session hijacking or malicious actions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-8461?
CVE-2025-8461 is a high-severity cross-site scripting vulnerability in Seres Software syWEB, published on 3 Feb 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Seres Software syWEB allows Reflected XSS.
This issue affects syWEB: through 03022026.
NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Weakness: CWE-79
Which versions are affected by CVE-2025-8461?
How do I fix CVE-2025-8461?
No fix has been published for CVE-2025-8461 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-8461 being exploited?
There is no known exploitation of CVE-2025-8461 in the wild and no public exploit code.
Sources
Also known as GHSA-q8pm-84cx-6m66.