Quick answers
- Is CVE-2026-84781 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-84781 being exploited in the wild.
- How severe is CVE-2026-84781?
- Medium severity, with a CVSS score of 6.5, published 2 September 2026.
- Which products and versions are affected?
- WP Chill Gallery PhotoBlocks <= 1.3.4.
- Is there a fix for CVE-2026-84781?
- A patch was published on 2026-09-02: Fixed in version 1.3.5 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-84781 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-84781?
- Check whether you run WP Chill Gallery PhotoBlocks 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.
Technical details
A cross-site scripting (XSS) vulnerability exists in Gallery PhotoBlocks plugin versions up to 1.3.4, allowing an attacker with contributor-level privileges to inject malicious JavaScript into gallery content. The vulnerability requires user interaction (such as a privileged user clicking a malicious link or visiting a crafted page) to be successfully exploited. An attacker can execute arbitrary scripts in the context of the website, potentially stealing session cookies, hijacking visitor accounts, or performing unauthorized actions. The vulnerability is patched in version 1.3.5 and later.
Affected products
- WP Chill Gallery PhotoBlocks <= 1.3.4
Timeline
- 2026-09-02: disclosed
- 2026-09-02: patched: Fixed in version 1.3.5