Quick answers
- Is CVE-2026-78261 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-78261 being exploited in the wild.
- How severe is CVE-2026-78261?
- High severity, with a CVSS score of 7.1, published 27 August 2026.
- Which products and versions are affected?
- Realtyna Organic IDX <= 5.4.1.
- Is there a fix for CVE-2026-78261?
- A patch was published on 2026-08-25: Version 5.4.2 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-78261 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-78261?
- Check whether you run Realtyna Organic IDX 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
The vulnerability is a reflected or stored cross-site scripting (XSS) flaw in the Realtyna Organic IDX plugin versions 5.4.1 and earlier that allows unauthenticated attackers to inject arbitrary JavaScript. The attack requires user interaction (e.g., a victim clicking a malicious link or visiting a crafted page), but no authentication is needed to initiate the attack. Successful exploitation allows attackers to steal visitor session cookies, perform actions on behalf of users, capture sensitive data, or redirect users to malicious sites. The vulnerability has been patched in version 5.4.2 and later.
Affected products
- Realtyna Organic IDX <= 5.4.1
Timeline
- 2026-08-27: disclosed: Published by Patchstack
- 2026-08-25: patched: Version 5.4.2 released