XSS in Metaphorcreations Post Duplicator
CVE-2021-33852
A cross-site scripting (XSS) attack can cause arbitrary code (JavaScript) to run in a user's browser and can use an application as the vehicle for the attack. The XSS payload given in the "Duplicate Title" text box executes whenever the user opens the Settings Page of the Post Duplicator Plugin or the application root page after duplicating any of the existing posts.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.006 (48.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Metaphorcreations Post Duplicator — versions 2.23
- WordPress Post Duplicator Plugin — versions Version 2.23
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cybersecurityworks.com/zerodays/cve-2021-33852-stored-cross-site-scripting-in-w… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-33852?
- CVE-2021-33852 is a medium-severity vulnerability in Metaphorcreations Post Duplicator, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-03-10.
- How severe is CVE-2021-33852?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2021-33852 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.