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Vulnerability Details :

CVE-2025-13079

Summary
Assigner-Wordfence
Assigner Org ID-b15e7b5b-3da4-40ae-a43c-f7aa60e62599
Published At-19 Feb, 2026 | 03:25
Updated At-19 Feb, 2026 | 17:42
Rejected At-
Credits

Popup Builder - Create highly converting, mobile friendly marketing popups. <= 4.4.2 - Improper Authorization to Unauthenticated Subscriber Removal via Predictable Tokens

The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.4.2. This is due to the plugin generating predictable unsubscribe tokens using deterministic data. This makes it possible for unauthenticated attackers to unsubscribe arbitrary subscribers from mailing lists via brute-forcing the unsubscribe token, granted they know the victim's email address

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:Wordfence
Assigner Org ID:b15e7b5b-3da4-40ae-a43c-f7aa60e62599
Published At:19 Feb, 2026 | 03:25
Updated At:19 Feb, 2026 | 17:42
Rejected At:
▼CVE Numbering Authority (CNA)
Popup Builder - Create highly converting, mobile friendly marketing popups. <= 4.4.2 - Improper Authorization to Unauthenticated Subscriber Removal via Predictable Tokens

The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.4.2. This is due to the plugin generating predictable unsubscribe tokens using deterministic data. This makes it possible for unauthenticated attackers to unsubscribe arbitrary subscribers from mailing lists via brute-forcing the unsubscribe token, granted they know the victim's email address

Affected Products
Vendor
popupbuilder
Product
Popup Builder – Create highly converting, mobile friendly marketing popups.
Default Status
unaffected
Versions
Affected
  • From * through 4.4.2 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-1241CWE-1241 Use of Predictable Algorithm in Random Number Generator
Type: CWE
CWE ID: CWE-1241
Description: CWE-1241 Use of Predictable Algorithm in Random Number Generator
Metrics
VersionBase scoreBase severityVector
3.15.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Version: 3.1
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
finder
Rafshanzani Suhada
Timeline
EventDate
Discovered2025-10-24 00:00:00
Disclosed2026-02-18 00:00:00
Event: Discovered
Date: 2025-10-24 00:00:00
Event: Disclosed
Date: 2026-02-18 00:00:00
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.wordfence.com/threat-intel/vulnerabilities/id/62b29721-0580-4e1d-824d-9b8355890248?source=cve
N/A
https://plugins.trac.wordpress.org/browser/popup-builder/tags/4.4.2/com/classes/Actions.php#L842
N/A
https://plugins.trac.wordpress.org/browser/popup-builder/tags/4.4.2/com/helpers/AdminHelper.php#L896
N/A
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3444540%40popup-builder&new=3444540%40popup-builder&sfp_email=&sfph_mail=
N/A
Hyperlink: https://www.wordfence.com/threat-intel/vulnerabilities/id/62b29721-0580-4e1d-824d-9b8355890248?source=cve
Resource: N/A
Hyperlink: https://plugins.trac.wordpress.org/browser/popup-builder/tags/4.4.2/com/classes/Actions.php#L842
Resource: N/A
Hyperlink: https://plugins.trac.wordpress.org/browser/popup-builder/tags/4.4.2/com/helpers/AdminHelper.php#L896
Resource: N/A
Hyperlink: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3444540%40popup-builder&new=3444540%40popup-builder&sfp_email=&sfph_mail=
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@wordfence.com
Published At:19 Feb, 2026 | 07:17
Updated At:19 Feb, 2026 | 15:53

The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.4.2. This is due to the plugin generating predictable unsubscribe tokens using deterministic data. This makes it possible for unauthenticated attackers to unsubscribe arbitrary subscribers from mailing lists via brute-forcing the unsubscribe token, granted they know the victim's email address

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.15.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Type: Primary
Version: 3.1
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-1241Primarysecurity@wordfence.com
CWE ID: CWE-1241
Type: Primary
Source: security@wordfence.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://plugins.trac.wordpress.org/browser/popup-builder/tags/4.4.2/com/classes/Actions.php#L842security@wordfence.com
N/A
https://plugins.trac.wordpress.org/browser/popup-builder/tags/4.4.2/com/helpers/AdminHelper.php#L896security@wordfence.com
N/A
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3444540%40popup-builder&new=3444540%40popup-builder&sfp_email=&sfph_mail=security@wordfence.com
N/A
https://www.wordfence.com/threat-intel/vulnerabilities/id/62b29721-0580-4e1d-824d-9b8355890248?source=cvesecurity@wordfence.com
N/A
Hyperlink: https://plugins.trac.wordpress.org/browser/popup-builder/tags/4.4.2/com/classes/Actions.php#L842
Source: security@wordfence.com
Resource: N/A
Hyperlink: https://plugins.trac.wordpress.org/browser/popup-builder/tags/4.4.2/com/helpers/AdminHelper.php#L896
Source: security@wordfence.com
Resource: N/A
Hyperlink: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3444540%40popup-builder&new=3444540%40popup-builder&sfp_email=&sfph_mail=
Source: security@wordfence.com
Resource: N/A
Hyperlink: https://www.wordfence.com/threat-intel/vulnerabilities/id/62b29721-0580-4e1d-824d-9b8355890248?source=cve
Source: security@wordfence.com
Resource: N/A

Change History

0
Information is not available yet

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