CVE-2025-13902 Cross-site scripting in Modicon Controllers M241/M251
Authenticated attackers can execute arbitrary JavaScript in victims' browsers via stored XSS in Schneider Electric Modicon controllers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-13902?
CVE-2025-13902 is a medium-severity cross-site scripting vulnerability in Schneider Electric Modicon Controllers M241/M251, published on 10 Mar 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability exists that could cause condition where authenticated attackers can have a victim’s browser run arbitrary JavaScript when the victim hovers over a maliciously crafted element on a web server containing the injected payload.
Weakness: CWE-79
Which versions are affected by CVE-2025-13902?
It affects 4 products.
Products include Schneider-Electric Modicon Lmc058 Firmware, Schneider-Electric Modicon M241 Firmware, Schneider-Electric Modicon M251 Firmware, Schneider-Electric Modicon M258 Firmware.
How do I fix CVE-2025-13902?
No fix has been published for CVE-2025-13902 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-2025-13902 being exploited?
There is no known exploitation of CVE-2025-13902 in the wild and no public exploit code.
Other vulnerabilities in Schneider Electric Modicon Controllers M241/M251
Sources
Also known as GHSA-pm47-v83p-5qpg.