Resource Exhaustion The advisory has been revoked - it doesn't affect any version of package wordpress (opens in a new tab)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU2510-WORDPRESS-15026693
- published17 Jan 2026
- disclosed6 Feb 2018
Introduced: 6 Feb 2018
CVE-2018-6389 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:25.10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream wordpress package and not the wordpress package as distributed by Ubuntu.
In WordPress through 4.9.2, unauthenticated attackers can cause a denial of service (resource consumption) by using the large list of registered .js files (from wp-includes/script-loader.php) to construct a series of requests to load every file many times.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-6389
- https://security-tracker.debian.org/tracker/CVE-2018-6389
- https://www.exploit-db.com/exploits/43968/
- https://baraktawily.blogspot.fr/2018/02/how-to-dos-29-of-world-wide-websites.html
- https://github.com/UltimateHackers/Shiva
- https://github.com/WazeHell/CVE-2018-6389
- https://thehackernews.com/2018/02/wordpress-dos-exploit.html
- https://wpvulndb.com/vulnerabilities/9021
- http://www.securityfocus.com/bid/103060
- http://www.securitytracker.com/id/1040347
- https://github.com/s0md3v/Shiva