CVE-2026-33673 json
PrestaShop has multiple stored XSS vulnerabilities via unprotected Template variables
published 2026-03-25 7 mo ago modified 2026-07-16 3 mo ago also GHSA-35pf-37c6-jxjv , EUVD-2026-16441
- cvss
- 7.7
- 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 20%
- public exploits
- 0
- none known
Summary
PrestaShop is an open source e-commerce web application. Versions prior to 8.2.5 and 9.1.0 are vulnerable to stored Cross-Site Scripting (stored XSS) vulnerabilities in the BO. An attacker who can inject data into the database, via limited back-office access or a previously existing vulnerability, can exploit unprotected variables in back-office templates. Versions 8.2.5 and 9.1.0 contain a fix. No known workarounds are available.
Patch / fix
- packagist prestashop/prestashop 8.2.5, 9.1.0
- prestashop prestashop 8.2.5, 9.1.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 7 mo ago
Exploit prediction
0.27% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.7 | CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H |
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| GitHub | 3.1 | 7.6 | CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | prestashop/prestashop | >=9.0.0-alpha.1, <9.1.0 <8.2.5 |
9.1.0 8.2.5 |
Affected products
- PrestaShop PrestaShop
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/PrestaShop/PrestaShop/security/advisories/GHSA-35pf-37c6-jxjv
web, vendor-advisory
-
github.com
/PrestaShop/PrestaShop/releases/tag/8.2.5
web, release-notes
-
github.com
/PrestaShop/PrestaShop/releases/tag/9.1.0
web, release-notes
-
nvd.nist.gov
/vuln/detail/CVE-2026-33673
advisory
-
github.com
/PrestaShop/PrestaShop
package
Sources
- CVE List CVE-2026-33673
- GitHub Advisory GHSA-35pf-37c6-jxjv
- NVD CVE-2026-33673
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