Stored XSS on back office edit page

published 2020-04-16 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-26468

cvss: 4.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits: 0; none known

In the ps_link module for PrestaShop before version 3.1.0, there is a stored XSS when you create or edit a link list block with the title field. The problem is fixed in 3.1.0

Patch / fix

fixed in 1 links 1

prestashop prestashop_link 3.1.0

github.com/PrestaShop/ps_linklist@b90005c commit

Exploit prediction

0.64% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.4	CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	3.5	AV:N/AC:M/Au:S/C:N/I:P/A:N

Affected products

PrestaShop ps_linklist

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /PrestaShop/ps_linklist/commit/b90005c2cfed949ab564228b277a728e0a62a876
patch, third-party-advisory
github.com /PrestaShop/ps_linklist/security/advisories/GHSA-vr7g-vqp5-966j
third-party-advisory

Sources

CVE List CVE-2020-5266
NVD CVE-2020-5266

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary