CVE-2021-39320
Last modified
CVE-2021-39320 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. The underConstruction plugin <= 1.18 for WordPress echoes out the raw value of `$GLOBALS['PHP_SELF']` in the ucOptions.php file. On certain configurations including Apache+modPHP, this makes it possible to use it to perform a reflected Cross-Site Scripting attack by injecting malicious code in the request path.. EPSS estimates a 2.33% chance of exploitation in the next 30 days.
Description
The underConstruction plugin <= 1.18 for WordPress echoes out the raw value of `$GLOBALS['PHP_SELF']` in the ucOptions.php file. On certain configurations including Apache+modPHP, this makes it possible to use it to perform a reflected Cross-Site Scripting attack by injecting malicious code in the request path.
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 |
|---|---|---|
| Underconstruction Project | Underconstruction | < 1.19 |
References
- https://wpscan.com/vulnerability/49ae1df0-d6d2-4cbb-9a9d-bf3599429875Third Party Advisory
- https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39320Third Party Advisory
- https://wpscan.com/vulnerability/49ae1df0-d6d2-4cbb-9a9d-bf3599429875Third Party Advisory
- https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39320Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-39320?
How severe is CVE-2021-39320?
How do I fix CVE-2021-39320?
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-2021-39315The 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-2021-39318The H5P CSS Editor WordPress plugin is vulnerable to Reflect…6.1
- 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-2021-39321Version 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…
- CVE-2021-39325The OptinMonster WordPress plugin is vulnerable to Reflected…6.1
- CVE-2021-39326Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultID…
- CVE-2021-39327The BulletProof Security WordPress plugin is vulnerable to s…5.3
Are you affected by CVE-2021-39320?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST