CVE-2026-33673 json
PrestaShop has multiple stored XSS vulnerabilities via unprotected Template variables
published 7mo ago modified 3mo ago also EUVD-2026-16441 , GHSA-35pf-37c6-jxjv
- 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
Is CVE-2026-33673 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 7mo ago
Exploit prediction
0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-09).
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 |
| GitHub | 3.1 | 7.6 | 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 |
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
Fencer Intel 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.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.