CVE-2021-3291

highpriority · attend · 45EPSS 0.170 · 97 %ileexploit · functionalEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

2 exploits · functional

Likely / severe?

17.0% (97th) EPSS

CVSS 9 · high

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

Zen Cart 1.5.7b allows admins to execute arbitrary OS commands by inspecting an HTML radio input element (within the modules edit page) and inserting a command.

cvss

Technical severity, 0–10. One row per scoring source.

9.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–9

v2.09highAV:N/AC:L/Au:S/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 8 · impact 10

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.2 · impact 5.9

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v3.16.8mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-78USprimaryCWE-78US

exploits (2)

Public proof-of-concept and weaponised exploit code.

EDB-49608Zen Cart 1.5.7b - Remote Code Execution (Authenticated)functional · exploit_db
ImHades101/CVE-2021-3291rebuild cvePoC · poc_in_github

affected products (3)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
zen-cart zen cart= 1.5.7bnvdUScpe:2.3:a:zen-cart:zen_cart:*:*:*:*:*:*:*:*
Packagist zencart/zencart< 1.5.7cosvUSpkg:composer/zencart/zencart

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-38f9-4vhq-9cr8Zen Cart vulnerable to authenticated remote code execution2022-05-24ghsa · osvUS
Zen Cart 1.5.7b allows admins to execute arbitrary OS commands by inspecting an HTML radio input element (within the modules edit page) and inserting a command.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2021-01-26modified 2026-06-17

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references (8)

External citations — patches, advisories, analysis.

scry

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