# CVE-2026-77782: Rank Math SEO < 1.0.277.1 - Unauthenticated Password-Protected Post Content Disclosure via Post Metadata and llms.txt

> Unauthenticated attackers can read content from password-protected posts via exposed SEO metadata in Rank Math SEO.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 2 Sep 2026
- **Updated:** 2 Sep 2026
- **Also known as:** GHSA-99qg-4wj7-5hm6

## What is CVE-2026-77782?

CVE-2026-77782 is a medium-severity vulnerability in Unknown Rank Math SEO, published on 2 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Rank Math SEO  WordPress plugin before 1.0.277.1 does not check whether a post is password protected before using its content to build publicly generated SEO metadata, allowing unauthenticated users to read the content of password-protected posts.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2026-77782?


## How do I fix CVE-2026-77782?

No fix has been published for CVE-2026-77782 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-77782 being exploited?

There is no known exploitation of CVE-2026-77782 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-77782 and fix it if it is affected.

What it is: CVE-2026-77782 is a medium-severity vulnerability in Unknown Rank Math SEO, published on 2 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-77782 in the wild and no public exploit code.

Affected product: Unknown Rank Math SEO. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-77782/ (Markdown: https://insights.sbomify.com/CVE-2026-77782/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-77782
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-77782
- OSV: https://osv.dev/vulnerability/CVE-2026-77782

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-77782/
Summaries are generated and may contain mistakes; the official description above is the record.