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CVE Record

CVE-2023-2578: Buy Me a Coffee < 3.7 - Admin+ Stored XSS

The Buy Me a Coffee WordPress plugin before 3.7 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This issue affects the Buy Me a Coffee WordPress plugin before version 3.7. Some plugin settings were not properly cleaned before display, allowing an administrator-level user to store malicious script content. The main concern is multisite or restricted-admin environments where unfiltered HTML is intentionally disabled.

Executive priority

Treat this as a targeted hygiene fix, not an internet-wide emergency. Upgrade affected WordPress plugins promptly, especially on multisite environments, because the vulnerability can undermine security boundaries intended to limit administrator HTML/script use.

Technical view

CVE-2023-2578 is a CWE-79 stored cross-site scripting issue in Buy Me a Coffee for WordPress before 3.7. The source states some settings were not sanitized and escaped, allowing admin-level users to persist XSS even when unfiltered_html is disallowed.

Likely exposure

Exposure is limited to WordPress sites running the Buy Me a Coffee plugin before 3.7. Risk is most relevant where administrator actions are constrained, such as WordPress multisite, because the flaw bypasses expected unfiltered_html restrictions.

Exploitation context

The bundle does not show CISA KEV listing or confirmed active exploitation. WPScan is tagged as an exploit reference, so public technical details may exist, but the source bundle does not support claims of real-world exploitation.

Researcher notes

Affected metadata in the bundle is sparse and lists severity as unknown with no CVSS. The reliable scope is the narrative: Buy Me a Coffee WordPress plugin before 3.7, admin-plus stored XSS, relevant when unfiltered_html is disallowed.

Mitigation direction

  • Update Buy Me a Coffee WordPress plugin to version 3.7 or later.
  • Restrict administrator access to trusted accounts only.
  • Review plugin settings for unexpected script-like content.
  • Check vendor and WordPress plugin guidance for any additional remediation.
  • Prioritize multisite environments where unfiltered_html is disabled.

Validation and detection

  • Inventory WordPress sites for Buy Me a Coffee plugin installations.
  • Confirm installed plugin versions are 3.7 or later.
  • Review multisite administrator permissions and unfiltered_html restrictions.
  • Inspect recent plugin setting changes for unauthorized edits.
  • Check admin account activity around plugin configuration changes.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-79: User-session and phishing behavior lookup

Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2023-2578 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
UnknownBuy Me a Coffee0unaffected
Weakness

CWE details

CWE-79

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.