XSS in Language Bar Flags Project
CVE-2021-24431
The Language Bar Flags WordPress plugin through 1.0.8 does not have any CSRF in place when saving its settings and did not sanitise or escape them when generating the flag bar in the frontend. This could allow attackers to make a logged in admin change the settings, and set Cross-Site Scripting payload in them, which will be executed in the frontend for all users
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.005 (39.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Language Bar Flags Project
- Language Bar Flags — versions 1.0.8
Weakness classification (CWE)
Public proof-of-concept exploits
References
- wpscan.com/vulnerability/ae50cec9-5f80-4221-b6a8-4593ab66c37b (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-24431?
- CVE-2021-24431 is a medium-severity vulnerability in Language Bar Flags Project, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2021-09-13.
- How severe is CVE-2021-24431?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2021-24431 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.