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CVE-2026-33673

26
FAUCET Score

CVE-2026-33673 is a stored Cross-Site Scripting (XSS) vulnerability impacting PrestaShop e-commerce web applications in versions prior to 8.2.5 and 9.1.0. It allows an attacker with limited back-office access or a pre-existing vulnerability to inject malicious data into the database, potentially leading to information disclosure and data modification within the back-office. This vulnerability carries a CVSS score of 5.4 (Medium), indicating a network attack vector with low complexity but requiring user interaction. Currently, there is no public exploit code available, and it is not listed in CISA's Known Exploited Vulnerabilities catalog. However, the vulnerability has generated community discussion, with 44 mentions across various platforms.

Impacted Technologies

VendorProductVersion(s)CPE
< 8.2.5CPE matchmatch criteria
cpe:2.3:a:prestashop:prestashop:*:*:*:*:*:*:*:*
>= 9.0.0, < 9.1.0CPE matchmatch criteria
cpe:2.3:a:prestashop:prestashop:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.6HIGH

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.27%
Probability of exploitation in next 30 days
EPSS Percentile
19.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0027 is in the 26th percentile among its peer group of 15,239 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

composerpatch availablevia ghsa
Product: prestashop/prestashopFixed in: 9.1.0
composerpatch availablevia ghsa
Product: prestashop/prestashopFixed in: 8.2.5
github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-35pf-37c6-jxjvhigh

PrestaShop has multiple stored XSS vulnerabilities via unprotected Template variables

Mar 25, 2026

References

github.com / PrestaShop/PrestaShop/releases/tag/8.2.5
Release Notes
github.com / PrestaShop/PrestaShop/releases/tag/9.1.0
Release Notes
github.com / PrestaShop/PrestaShop/security/advisories/GHSA-35pf-37c6-jxjv
Vendor Advisory