CVE-2023-29689

criticalpriority · attend · 68EPSS 0.535 · 99 %ileexploit · PoCEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

2 exploits · PoC

Likely / severe?

53.5% (99th) EPSS

CVSS 9.8 · critical

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

PyroCMS 3.9 contains a remote code execution (RCE) vulnerability that can be exploited through a server-side template injection (SSTI) flaw. This vulnerability allows a malicious attacker to send customized commands to the server and execute arbitrary code on the affected system.

cvss

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

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-94USLLM-inferredCWE-98USLLM-inferred

exploits (2)

Public proof-of-concept and weaponised exploit code.

EDB-51669Pyro CMS 3.9 - Server-Side Template Injection (SSTI) (Authenticated)PoC · exploit_db
YSaxon/pyrocms-ssti-fixA drop-in fix for CVE-2023-29689 - SSTI in PyroCMS, via a custom Twig Sandbox implementationPoC · poc_in_github

affected products (3)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
pyrocms pyrocms= 3.9nvdUScpe:2.3:a:pyrocms:pyrocms:*:*:*:*:*:*:*:*
Packagist pyrocms/pyrocms≤ 3.9osvUSpkg:composer/pyrocms/pyrocms

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-w7vm-4v3j-vgpwPyroCMS remote code execution vulnerability2023-08-04ghsa · osvUS
PyroCMS 3.9 contains a remote code execution (RCE) vulnerability that can be exploited through a server-side template injection (SSTI) flaw. This vulnerability allows a malicious attacker to send customized commands to the server and execute arbitrary code on the affected system.

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 2023-08-04modified 2026-06-17

references (9)

External citations — patches, advisories, analysis.

scry

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