XSS in Brevo Newsletter\, Smtp\, Email Marketing And Subscribe
CVE-2021-24874
The Newsletter, SMTP, Email marketing and Subscribe forms by Sendinblue WordPress plugin before 3.1.31 does not escape the lang and pid parameter before outputting them back in attributes, leading to Reflected Cross-Site Scripting issues
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.008 (55.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Brevo Newsletter\, Smtp\, Email Marketing And Subscribe
- Newsletter, Smtp, Email Marketing And Subscribe Forms By Sendinblue — versions 3.1.31
Weakness classification (CWE)
Public proof-of-concept exploits
References
- wpscan.com/vulnerability/28d34cc1-2294-4409-a60f-c8c441eb3f2d (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-24874?
- CVE-2021-24874 is a medium-severity vulnerability in Brevo Newsletter\, Smtp\, Email Marketing And Subscribe, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-02-14.
- How severe is CVE-2021-24874?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2021-24874 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.