Information disclosure in Redux Gutenberg Template Library \& Framework
CVE-2021-38314
The Gutenberg Template Library & Redux Framework plugin <= 4.2.11 for WordPress registered several AJAX actions available to unauthenticated users in the `includes` function in `redux-core/class-redux-core.php` that were unique to a given site but deterministic and predictable given that they were based on an md5 hash of the site URL with a known salt value of '-redux' and an md5 hash of the previous hash with a known salt value of '-support'. These AJAX actions could be used to retrieve a list of active plugins and their versions, the site's PHP version, and an unsalted md5 hash of site’s `AUTH_KEY` concatenated with the `SECURE_AUTH_KEY`.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.290 (98.1th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.290 · newest: 0.290 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.wordfence.com/blog/2021/09/over-1-million-sites-affected-by-redux-framework… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-38314?
- CVE-2021-38314 is a medium-severity vulnerability in Redux Gutenberg Template Library \& Framework, classified under Information Disclosure. CVSS score: 5.3/10. Published 2021-09-02.
- How severe is CVE-2021-38314?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2021-38314 known to be exploited?
- 32 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.