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CVE-2023-29689

59
FAUCET Score

CVE-2023-29689 is a critical remote code execution (RCE) vulnerability in PyroCMS 3.9, stemming from a server-side template injection (SSTI) flaw. This allows unauthenticated attackers to execute arbitrary code on the affected system by sending specially crafted commands. With a CVSS score of 9.8 (Critical), the vulnerability has a network attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While not currently listed in CISA's KEV catalog, an authenticated exploit is publicly available on ExploitDB, though there is minimal community discussion or media coverage surrounding it.

Impacted Technologies

VendorProductVersion(s)CPE
3.9CPE matchmatch criteria
cpe:2.3:a:pyrocms:pyrocms:3.9:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
41.11%
Probability of exploitation in next 30 days
EPSS Percentile
98.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-51669 · Aug 8, 2023
This CVE's current EPSS score of 0.4111 is in the 96th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

composerGHSA-w7vm-4v3j-vgpwcritical

PyroCMS remote code execution vulnerability

Aug 4, 2023

References

packetstormsecurity.com / files/174088/Pyro-CMS-3.9-Server-Side-Template-Injection.html
cupc4k3.lol / ssti-leads-to-rce-on-pyrocms-7515be27c811
ExploitThird Party Advisory