XSS in Pagelayer
CVE-2020-35947
An issue was discovered in the PageLayer plugin before 1.1.2 for WordPress. Nearly all of the AJAX action endpoints lacked permission checks, allowing these actions to be executed by anyone authenticated on the site. This happened because nonces were used as a means of authorization, but a nonce was present in a publicly viewable page. The greatest impact was the pagelayer_save_content function that allowed pages to be modified and allowed XSS to occur.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.011 (61.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L.
Affected products
- Pagelayer
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-35947?
- CVE-2020-35947 is a high-severity vulnerability in Pagelayer, classified under Cross-site Scripting. CVSS score: 7.4/10. Published 2021-01-01.
- How severe is CVE-2020-35947?
- High severity. CVSS v3 base score is 7.4 out of 10.
- Is CVE-2020-35947 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.