WordPress security changelog
MEDIUM CVE-2023-2354 Modified

CHP Ads Block Detector: Cross-site scripting

CHP Ads Block Detector is affected by cross-site scripting. Exploitation requires an authenticated WordPress account. Injected script can execute in the affected site's origin when the vulnerable output is viewed.

CVE / CNA score 4.9 CVSS 3.1 · security@wordfence.com
NVD score 5.4 CVSS 3.1 · nvd@nist.gov
Component
CHP Ads Block Detector
Plugin slug
chp-ads-block-detector
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Aug 31, 2023
Weakness
CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

This CVE was published Aug 31, 2023 and is one of 4 known issues for this plugin.

What to do

Update, patch or deactivate.

Update CHP Ads Block Detector to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

The CHP Ads Block Detector plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings reachable though an AJAX action in versions up to, and including, 3.9.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

CVE / CNA vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N

NVD vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References

Primary and upstream sources