CVE-2021-39318
Last modified
CVE-2021-39318 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. The H5P CSS Editor WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the h5p-css-file parameter found in the ~/h5p-css-editor.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 1.0.. EPSS estimates a 0.76% chance of exploitation in the next 30 days.
Description
The H5P CSS Editor WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the h5p-css-file parameter found in the ~/h5p-css-editor.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 1.0.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| H5p-Css-Editor Project | H5p-Css-Editor | <= 1.0 |
References
- https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39318Third Party Advisory
- https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39318Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-39318?
How severe is CVE-2021-39318?
How do I fix CVE-2021-39318?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-39312The True Ranker plugin <= 2.2.2 for WordPress allows arbitra…7.5
- CVE-2021-39313The Simple Image Gallery WordPress plugin is vulnerable to R…6.1
- CVE-2021-39314The WooCommerce EnvioPack WordPress plugin is vulnerable to …6.1
- CVE-2021-39315The Magic Post Voice WordPress plugin is vulnerable to Refle…6.1
- CVE-2021-39316The Zoomsounds plugin <= 6.45 for WordPress allows arbitrary…7.5
- CVE-2021-39317A WordPress plugin and several WordPress themes developed by…8.8
- CVE-2021-39319The duoFAQ - Responsive, Flat, Simple FAQ WordPess plugin is…6.1
- CVE-2021-3932twill is vulnerable to Cross-Site Request Forgery (CSRF)4.3
- CVE-2021-39320The underConstruction plugin <= 1.18 for WordPress echoes ou…6.1
- CVE-2021-39321Version 3.3.23 of the Sassy Social Share WordPress plugin is…8.8
- CVE-2021-39322The Easy Social Icons plugin <= 3.0.8 for WordPress echoes o…6.1
- CVE-2021-39324Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultID…
Are you affected by CVE-2021-39318?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST