CVE-2024-58303Public exploitNetwork attack vector

Administrative command execution via email template expressions

Published Dec 11, 2025 · Updated Dec 11, 2025

Server-side template injection in FriendsOfFlarum Pretty Mail 1.1.2 allows remote authenticated users to execute system commands. The email default template accepts and evaluates administrator-supplied template expressions, including PHP system calls, when an email is generated. Administrative access to the extension settings and an email-triggering action are required; successful exploitation runs commands in the Flarum server context.

CVSS severity8.6
High
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side template injection in FriendsOfFlarum Pretty Mail 1.1.2 allows remote authenticated users to execute system commands. The email default template accepts and evaluates administrator-supplied template expressions, including PHP system calls, when an email is generated. Administrative access to the extension settings and an email-triggering action are required; successful exploitation runs commands in the Flarum server context.

The record

CVE
CVE-2024-58303
Published
Dec 11, 2025
Updated
Dec 11, 2025
Vendor
Flarum
Product
FriendsOfFlarum Pretty Mail
Classifications
CWE-1336, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Dec 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 11, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Flarum · FriendsOfFlarum Pretty Mailversion=1.1.2

Published CVSS scores

8.6VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1336Improper Neutralization of Special Elements Used in a Template Engine
T1059Command and Scripting Interpreter

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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