Charitable <= 1.8.11.1 - Authenticated (Subscriber+) Insecure Direct Object Reference to Arbitrary Attachment Deletion via 'avatar' Parameter

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Summary

CVECVE-2026-10038
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-06 00:16:40 UTC
Updated2026-06-08 14:57:14 UTC
DescriptionThe Charitable – Donation Plugin for WordPress – Fundraising with Recurring Donations & More plugin for WordPress is vulnerable to Insecure Direct Object Reference / Authorization Bypass leading to Arbitrary Attachment Deletion in versions up to, and including, 1.8.11.1 via the profile avatar update flow. This is due to the save_avatar() function in Charitable_Profile_Form calling wp_delete_attachment() on an attachment ID read from the user's 'avatar' meta without validating that the attachment is owned by the user, combined with Charitable_Data_Processor::process_picture() returning the raw posted value when no file is uploaded, allowing the 'avatar' user meta to be poisoned with any attacker-chosen attachment ID. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary attachments from the Media Library by performing a two-request chain (first poisoning the stored avatar meta value with a target attachment ID, then triggering deletion via a normal avatar upload).

Risk And Classification

Primary CVSS: v3.1 4.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS: 0.000450000 probability, percentile 0.143390000 (date 2026-06-14)

Problem Types: CWE-639 | CWE-639 CWE-639 Authorization Bypass Through User-Controlled Key

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
3.1CNADECLARED4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Smub Charitable Donation Plugin For WordPress Fundraising With Recurring Donations More affected 1.8.11.1 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/charitable/tags/1.8.10/includes/users/class-charitabl... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/charitable/tags/1.8.10/includes/forms/class-charitabl... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/charitable/tags/1.8.10.5/includes/forms/class-charita... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset/3557047/charitable/trunk/includes/forms/class-chari... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/charitable/tags/1.8.10/includes/forms/class-charitabl... [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/657bea00-9709-48b8-807a-c9a18... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/charitable/tags/1.8.10/includes/utilities/class-chari... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/charitable/tags/1.8.10.5/includes/forms/class-charita... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/charitable/tags/1.8.10.5/includes/users/class-charita... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/charitable/tags/1.8.10/includes/abstracts/abstract-cl... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/charitable/tags/1.8.10.5/includes/utilities/class-cha... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/charitable/tags/1.8.10.5/includes/abstracts/abstract-... [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Khanh Nguyen (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-05-28T19:47:56.000ZVendor Notified
CNA2026-06-05T10:28:15.000ZDisclosed
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