CVE-2026-30139 Silverpeas Core has a reflected cross-site scripting vulnerability
Attackers can execute arbitrary JavaScript in user browsers via reflected XSS in Silverpeas Core AdvancedSearch functionality.
- 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-2026-30139?
CVE-2026-30139 is a medium-severity cross-site scripting vulnerability in n/a, published on 22 Apr 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
A reflected cross-site scripting (XSS) vulnerability in the AdvancedSearch functionality of Silverpeas Core before version 6.4.6 allows attackers to execute arbitrary JavaScript in the context of a user's browser via crafted input.
Weakness: CWE-79
Which versions are affected by CVE-2026-30139?
4 open source packages ship an affected version, including org.silverpeas.core:silverpeas-core-war and org.silverpeas.core:silverpeas-core-web.
| Package | Affected | Fixed in |
|---|---|---|
org.silverpeas.core:silverpeas-core-war Maven | All versions to 6.4-feature13197 | None |
org.silverpeas.core:silverpeas-core-war Maven | All versions to 6.4-feature13197 | None |
org.silverpeas.core:silverpeas-core-web Maven | All versions to 6.4-feature13197 | None |
org.silverpeas.core:silverpeas-core-web Maven | All versions to 6.4-feature13197 | None |
How do I fix CVE-2026-30139?
No fix has been published for CVE-2026-30139 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-2026-30139 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-30139 exists.
Sources
Also known as GHSA-vmj7-7xmm-4349.