How severe is CVE-2013-4791?

CVE-2013-4791 has a CVSS score of 5.4/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2013-4791?

CVE-2013-4791 affects the following packages: prestashop/prestashop (Packagist). Ecosystems affected: Packagist.

How do I fix CVE-2013-4791?

Update prestashop/prestashop to 1.4.11 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2013-4791 is resolved across your whole dependency graph.

How do I detect CVE-2013-4791 in my Packagist dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for prestashop/prestashop, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2013-4791 if there is no patch (or I can't update yet)?

Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Is CVE-2013-4791 actively exploited in the wild?

Yes. There are 1 known exploit references for CVE-2013-4791, including 1 in-the-wild exploitation observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2013-4791?

CVE-2013-4791 has an EPSS (Exploit Prediction Scoring System) score of 0.6%, placing it in the 46th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2013-4791?

CVE-2013-4791 is classified as Cross-site Scripting (XSS) (CWE-79). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

When was CVE-2013-4791 published, and has it been updated?

CVE-2013-4791 was published on May 5, 2022 and was last updated on November 8, 2023. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐘

🐘 Packagist

Not in CISA KEV

MEDIUM severity

CVE-2013-4791 — prestashop

MEDIUM

CVE-2013-4791 is a medium-severity (CVSS 5.4) Cross-site Scripting (XSS) vulnerability in prestashop/prestashop. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for prestashop/prestashop — see the affected versions and patch details below.

PrestaShop Stored Cross-Site Scripting Vulnerability

Published

May 5, 2022

Updated

Nov 8, 2023

Affected

1 pkg

Patched

1 / 1

Exploits

1 known

Exploitation data as of Oct 28, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

0.6%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs46th percentile — riskier than 46% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected

🐘prestashop/prestashop

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

PrestaShop before 1.4.11 allows Logistician, translators and other low level profiles/accounts to inject a persistent XSS vector on TinyMCE.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐘Packagist	`prestashop/prestashop`	all versions	1.4.11`composer require prestashop/prestashop:^1.4.11`

Affected Products

1 product · 1 configurations

Application

prestashopprestashop

< 1.4.11

range

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

PrestaShop before 1.4.11 allows Logistician, translators and other low l…

davidsopaslabs.blogspot.comNVDFeb 2020

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for prestashop/prestashop, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update prestashop/prestashop to 1.4.11 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2013-4791 is resolved across your whole dependency graph.
Workarounds
Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

PrestaShop before 1.4.11 allows Logistician, translators and other low level profiles/accounts to inject a persistent XSS vector on TinyMCE.

O3 Security · Impact-Aware SCA

Is CVE-2013-4791 in your dependencies?

Find it across Packagist, including transitive dependencies.

Scan my dependencies How O3 SCA works

CVSS Score

5.4/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Raw vector

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

CWE Classification

CWE-79Cross-site Scripting (XSS)

Weaponization

No Nuclei template or Metasploit module yet. 1 public proof-of-concept reference is listed on this page.

OpenSSF Scorecard

Package health score

PrestaShop

4.0/10

Code-Review10/10

Maintained10/10

Branch-Protection2/10

Assessed Oct 26, 2026

Timeline

First exploit

Feb 18, 2020

Disclosed

May 5, 2022

Last updated

Nov 8, 2023

Identifiers

CVE-2013-4791

References

Advisorynvd.nist.gov · CVE 2013 4791 Webdavidsopaslabs.blogspot.com · prestashop persistent xss and csrf Packagegithub.com · PrestaShop

Related vulnerabilities

This CVE is medium severity; 7 of 8 other CVEs affecting prestashop/prestashop are rated as high or higher (top: critical).

CVE-2026-44212CVE-2026-33674CVE-2026-33673CVE-2026-25597CVE-2025-51586CVE-2024-34716CVE-2024-34717CVE-2024-26129

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedNov 8, 2023