LiveActive security incident?Get immediate response
CVE Record

CVE-2023-2082: Buy Me a Coffee – Button and Widget Plugin <= 3.6 - Authenticated (Subscriber+) Stored Cross-Site Scripting

The "Buy Me a Coffee – Button and Widget Plugin" plugin for WordPress is vulnerable to Cross-Site Scripting in versions up to, and including, 3.6 due to insufficient sanitization and escaping on the 'text value set via the bmc_post_reception action. This makes it possible for authenticated attackers, with subscriber-level permissions, and above to inject arbitrary web scripts into pages that execute whenever a victim accesses a page with the injected scripts.

MediumCVSS 6.4Not KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This is a stored cross-site scripting issue in the Buy Me a Coffee WordPress plugin. A logged-in user with subscriber-level access could save script content that later runs when someone views an affected page. Impact is mainly session, content, or user-trust compromise, not server takeover.

Executive priority

Treat as a routine but timely web risk. Prioritize public WordPress sites with open registration or many low-privilege users, because stored XSS can affect visitors and administrators who browse impacted pages.

Technical view

Versions up to and including 3.6 insufficiently sanitize and escape text handled through the bmc_post_reception action, creating CWE-79 stored XSS. CVSS 3.1 is 6.4 with low attack complexity, required low privileges, changed scope, and low confidentiality and integrity impact.

Likely exposure

Exposure is limited to WordPress sites running Buy Me a Coffee – Button and Widget Plugin version 3.6 or earlier, especially where subscriber registration or low-privilege accounts are available to untrusted users.

Exploitation context

The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The vulnerability requires authenticated access but no victim interaction beyond viewing a page where injected script content is rendered.

Researcher notes

The cited records identify insufficient sanitization and escaping around bmc_post_reception text handling. The references include pre-fix code and a WordPress plugin changeset from tag 3.6 to 3.7, supporting remediation by update. No exploit evidence is provided.

Mitigation direction

  • Update the plugin to version 3.7 or later, or the latest vendor release.
  • Disable the plugin until updated if a vulnerable version is installed.
  • Limit subscriber account creation to trusted users where possible.
  • Review vendor and Wordfence guidance for any additional cleanup advice.

Validation and detection

  • Inventory WordPress sites for the Buy Me a Coffee plugin and installed version.
  • Confirm no production site is running version 3.6 or earlier.
  • Check whether public registration or untrusted subscriber accounts are enabled.
  • Review pages using the widget for unexpected script content or defacement indicators.
Prepared
Confidence
high
Sources
6

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.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2023-2082 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.4 (3.1)
Known Exploited
No
Published

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

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.

1CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.4CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N3.12.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.4Medium
CVSS 3.1 vector shape for CVE-2023-2082Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
buymeacoffeeBuy Me a Coffee – Button and Widget Plugin0unaffected
Weakness

CWE details

CWE-79

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

CWE-79 · source CWE mapping

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs