CVE-2023-36141Public exploitNetwork attack vector

Unauthenticated user enumeration via recovery responses

Published Aug 3, 2023 · Updated Oct 17, 2024

User enumeration in PHPJabbers Cleaning Business Software 1.0 allows remote attackers to identify valid accounts through password recovery. The Forgot Password workflow returns a distinct message when a submitted email address does not belong to a user instead of issuing a uniform response. No authentication is required; comparing responses discloses registered email addresses that can be targeted for password guessing.

CVSS severity5.3
Medium
EPSS probability0.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

User enumeration in PHPJabbers Cleaning Business Software 1.0 allows remote attackers to identify valid accounts through password recovery. The Forgot Password workflow returns a distinct message when a submitted email address does not belong to a user instead of issuing a uniform response. No authentication is required; comparing responses discloses registered email addresses that can be targeted for password guessing.

The record

CVE
CVE-2023-36141
Published
Aug 3, 2023
Updated
Oct 17, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1589.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 3, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 17, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.3INCIBE-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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 exploitPublished

Weakness, pattern, technique

T1589.002Gather Victim Identity Information: Email Addresses

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo