XSS in Chrisvrichardson Mappress Maps For WordPress

CVE-2023-4840

The MapPress Maps for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'mappress' shortcode in versions up to, and including, 2.88.4 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (43.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-4840: held from 0.005 to 0.006.

EPSS over last 30 days · oldest: 0.005 · newest: 0.006 · change: +0.001

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-4840?
CVE-2023-4840 is a medium-severity vulnerability in Chrisvrichardson Mappress Maps For WordPress, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2023-09-12.
How severe is CVE-2023-4840?
Medium severity. CVSS v3 base score is 6.4 out of 10.
Is CVE-2023-4840 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.