CVE-2023-4939Network attack vector

Log injection via predictable callback token

Published Oct 21, 2023 · Updated Apr 8, 2026

Log injection in Manago AI & Leadoo AI 3.2.4 and earlier allows remote attackers to write arbitrary content to plugin logs. The callbackApiV3 REST route accepts a token derived only from SHA-1 of the public site URL and client ID, then records attacker-controlled request data. No account or user interaction is required; exploitation alters log integrity, while further impact requires chaining with another flaw.

CVSS severity5.3
Medium
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Log injection in Manago AI & Leadoo AI 3.2.4 and earlier allows remote attackers to write arbitrary content to plugin logs. The callbackApiV3 REST route accepts a token derived only from SHA-1 of the public site URL and client ID, then records attacker-controlled request data. No account or user interaction is required; exploitation alters log integrity, while further impact requires chaining with another flaw.

The record

CVE
CVE-2023-4939
Published
Oct 21, 2023
Updated
Apr 8, 2026
Vendor
Manago AI
Product
Manago AI & Leadoo AI
Classifications
CWE-305, CWE-287, T1565
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 21, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record 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=0 <=3.2.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Manago AI · Manago AI & Leadoo AIversion=0 <=3.2.4

Published CVSS scores

5.3WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-305Authentication Bypass by Primary Weakness
CWE-287Improper Authentication
T1565Data Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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