XSS in Jetpack
CVE-2022-50958
WordPress Plugin Jetpack 9.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by manipulating the post_id parameter. Attackers can craft URLs to the grunion-form-view.php endpoint with script payloads in the post_id parameter to execute arbitrary JavaScript in victim browsers.
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: 0.002 (9.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 9.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Jetpack — versions 9.1
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/50735 (exploit)
- wordpress.org/plugins/jetpack (product)
- www.vulncheck.com/advisories/wordpress-plugin-jetpack-cross-site-scripting-via-… (third-party-advisory)
Frequently asked questions
- What is CVE-2022-50958?
- CVE-2022-50958 is a medium-severity vulnerability in Jetpack, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-05-10.
- How severe is CVE-2022-50958?
- Medium severity. CVSS v3 base score is 6.1 out of 10.