Cross-site Scripting in M4 PDF plugin for Prestashop sites

published 2023-09-20 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-48316

cvss: 3.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 26%
public exploits: 0; none known

M4 PDF plugin for Prestashop sites, in its 3.2.3 version and before, is vulnerable to an arbitrary HTML Document crafting vulnerability. The resource /m4pdf/pdf.php uses templates to dynamically create documents. In the case that the template does not exist, the application will return a fixed document with a message in mpdf format. An attacker could exploit this vulnerability by inputting a valid HTML/CSS document as the value of the parameter.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-09-06)

Exploit prediction

0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	3.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
NVD	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

Prestashop M4 PDF plugin

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

incibe.es /en/incibe-cert/notices/aviso/multiple-vulnerabilities-m4-pdf-plugin-prestashop-sites
third-party-advisory

Sources

CVE List CVE-2022-45448
NVD CVE-2022-45448

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