Security readout for executives and security teams
Plain-English summary
CVE-2021-4415 affects the Sunshine Photo Cart WordPress plugin. A missing or incorrect anti-forgery check could let an outside attacker make a logged-in site administrator save unwanted product-related content by tricking them into clicking or loading a crafted request.
Executive priority
Treat this as a moderate-priority WordPress plugin hygiene issue. It is not described as remotely exploitable without administrator interaction, but affected sites should still be updated promptly to prevent unauthorized content changes.
Technical view
The issue is CWE-352 CSRF in sunshine_products_quicksave_post() in Sunshine Photo Cart through 2.8.28. Sources attribute it to missing or incorrect nonce validation. Impact is limited integrity change: saving custom post data, with no reported confidentiality or availability impact.
Likely exposure
Exposure is limited to WordPress sites running Sunshine Photo Cart versions up to and including 2.8.28, especially where administrators are logged in while browsing untrusted links or pages.
Exploitation context
The CVE record says exploitation requires user interaction by a site administrator. The source bundle does not include KEV listing or other evidence of active exploitation.
Researcher notes
The available evidence supports CSRF with low integrity impact and required admin interaction. Public sources do not establish active exploitation. The WordPress Trac changeset for 2.8.29 is the clearest remediation signal in the provided bundle.
Mitigation direction
- Update Sunshine Photo Cart to version 2.8.29 or later.
- Review vendor and Wordfence guidance for any newer fixed release.
- Limit WordPress administrator sessions to trusted devices and networks.
- Review recent Sunshine product or custom post changes for unexpected edits.
- Train administrators to avoid untrusted links while logged into WordPress.
Validation and detection
- Inventory WordPress sites for Sunshine Photo Cart installations.
- Confirm installed plugin versions are not 2.8.28 or older.
- Verify the 2.8.29 code path includes corrected nonce validation.
- Review admin activity and content-change logs for suspicious product quicksave updates.
- Document remediation status for each affected WordPress instance.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-352: 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 lookupCVE-2021-4415 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
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.
CVSS vector scores
1 official scoreWe 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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N2.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c043510b-6aeb-4e91-80f0-a62970c01b1d?source=cveCVE reference
- https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/CVE reference
- https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/CVE reference
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/CVE reference
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/CVE reference
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/CVE reference
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/CVE reference
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/CVE reference
- https://plugins.trac.wordpress.org/changeset/2548557/sunshine-photo-cart/tags/2.8.29/admin/sunshine-products.phpCVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Cross-Site Request Forgery (CSRF)
Cross-Site Request Forgery (CSRF) represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.