XSS in Advanced Excerpt

CVE-2026-13701

The Advanced Excerpt WordPress plugin before 4.5 does not sanitise and escape one of its settings before outputting it on the front end of the site, which could allow administrators (including those without the unfiltered_html capability, such as on multisite) to perform Stored Cross-Site Scripting attacks that execute in the context of any visitor viewing affected pages.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (6.5th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.5% 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-2026-13701: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

  • Advanced Excerpt — versions 0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-13701?
CVE-2026-13701 is a medium-severity vulnerability in Advanced Excerpt, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2026-08-10.
How severe is CVE-2026-13701?
Medium severity. CVSS v3 base score is 4.8 out of 10.