Quick answers
- Is CVE-2026-77784 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-77784 being exploited in the wild.
- How severe is CVE-2026-77784?
- Low severity, with a CVSS score of 2.7, published 2 September 2026.
- Which products and versions are affected?
- Rank Math SEO before 1.0.277.
- Is there a fix for CVE-2026-77784?
- A patch was published on 2026: Fixed in version 1.0.277 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-77784 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-77784?
- Check whether you run Rank Math SEO 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 an Insecure Direct Object Reference (IDOR) / broken access control flaw in the rank_math_mark_page_as AJAX action. The plugin fails to verify that the authenticated user has permission to edit the target object before applying SEO metadata changes (noindex, nofollow, pillar_content flags). Attack precondition: attacker must have Author role or higher and possess a valid AJAX nonce emitted on any front-end page. The attack vector is network-based; an attacker can issue a crafted POST request to wp-admin/admin-ajax.php with parameters specifying the target post ID, term ID, or user ID and the desired flag. Impact: arbitrary modification of robots directives, removal of content from sitemaps, and manipulation of search engine visibility on objects the attacker does not own. Fixed in version 1.0.277.
Affected products
- Rank Math Rank Math SEO before 1.0.277
Timeline
- 2026-08-31: disclosed
- 2026: patched: Fixed in version 1.0.277