XSS in N/a

CVE-2026-88420

A reflected cross-site scripting (XSS) vulnerability in the EntryAbstract.save() component of APSL puput v1.2.1 through v2.2.0 allows authenticated attackers with Wagtail Editor privileges to execute arbitrary code in the context of the victim's browser via a crafted payload.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (8.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 8.8% 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-2026-88420: held from 0.002 to 0.002.

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

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-88420?
CVE-2026-88420 is a medium-severity vulnerability in N/a, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-09-25.
How severe is CVE-2026-88420?
Medium severity. CVSS v3 base score is 5.4 out of 10.