CVE-2026-40545 Reflected XSS in SOPlanning
Reflected XSS in SOPlanning allows attackers to execute arbitrary JavaScript in authenticated victims' browsers via a malicious URL.
- 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-2026-40545?
CVE-2026-40545 is a medium-severity cross-site scripting vulnerability in SOPlanning, published on 1 Jun 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
SOPlanning is vulnerable to Reflected XSS via the taches parameter. An attacker can craft a malicious URL which, when opened by authenticated victim, results in arbitrary JavaScript execution in the victim’s browser.
This issue affects SOPlanning version 1.55 and below.
Weakness: CWE-79
Which versions are affected by CVE-2026-40545?
How do I fix CVE-2026-40545?
No fix has been published for CVE-2026-40545 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-2026-40545 being exploited?
There is no known exploitation of CVE-2026-40545 in the wild and no public exploit code.
Sources
Also known as GHSA-g36v-xj2q-4799.