CVE-2026-2433 describes a DOM-Based Cross-Site Scripting vulnerability in the RSS Aggregator WordPress plugin, affecting all versions up to 5.0.11. This flaw allows unauthenticated attackers to execute arbitrary JavaScript within an administrator's session by leveraging a missing origin validation in the plugin's postMessage listener and insecure handling of user-controlled URLs in window.open(). Rated 6.1 MEDIUM (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N), the vulnerability requires user interaction (tricking an admin into visiting a malicious site) but has a low attack complexity. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Rebelcode | RSS Aggregator – RSS Import, News Feeds, Feed To Post, And Autoblogging | >= 0, <= 5.0.11CNA affecteddefault unaffected |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.