CVE-2026-57813Network attack vector

Unauthenticated privilege escalation

Published Jul 13, 2026 · Updated Jul 13, 2026

Incorrect privilege assignment in Proper Fraction MailOptin 1.2.77.3 and earlier allows remote attackers to gain elevated site privileges. Patchstack has not published the affected component or the privilege-assignment operation that fails to enforce authorization. No account or user interaction is required, but public sources do not identify the exact role obtained or privileged actions exposed.

CVSS severity9.8
Critical
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect privilege assignment in Proper Fraction MailOptin 1.2.77.3 and earlier allows remote attackers to gain elevated site privileges. Patchstack has not published the affected component or the privilege-assignment operation that fails to enforce authorization. No account or user interaction is required, but public sources do not identify the exact role obtained or privileged actions exposed.

The record

CVE
CVE-2026-57813
Published
Jul 13, 2026
Updated
Jul 13, 2026
Vendor
ProfilePress Membership Team
Product
MailOptin
Classifications
CWE-266, CAPEC-233, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 13, 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 <=1.2.77.3 changes=[{"at":"1.2.78.0","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ProfilePress Membership Team · MailOptinversion=0 <=1.2.77.3 changes=[{"at":"1.2.78.0","status":"unaffected"}]

Published CVSS scores

9.8PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-266Incorrect Privilege Assignment
CAPEC-233Privilege Escalation
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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