What is CVE-2024-10858?

CVE-2024-10858 is a medium-severity vulnerability in Automattic Jetpack, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2024-12-25.

How severe is CVE-2024-10858?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2024-10858 known to be exploited?

4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Automattic Jetpack

CVE-2024-10858

The Jetpack WordPress plugin before 14.1 does not properly checks the postmessage origin in its 13.x versions, allowing it to be bypassed and leading to DOM-XSS. The issue only affects websites hosted on WordPress.com.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2024-12-25 · last modified 2026-06-17.

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: 0.004 (26.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 26.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Automattic Jetpack
Jetpack — versions 13.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

wpscan.com/vulnerability/7fecba37-d718-4dd4-89f3-285fb36a4165/ (Exploit, technical-description, Third Party Advisory, exploit, vdb-entry)

Frequently asked questions

What is CVE-2024-10858?: CVE-2024-10858 is a medium-severity vulnerability in Automattic Jetpack, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2024-12-25.
How severe is CVE-2024-10858?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2024-10858 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.