Security readout for executives and security teams
Plain-English summary
CVE-2026-1216 affects the WordPress RSS Aggregator plugin through version 5.0.10. A crafted link could cause malicious script to run in a victim’s browser if the victim is tricked into opening it. This can expose user data or alter page behavior in that session, especially for logged-in site users.
Executive priority
Treat as a near-term web risk for WordPress sites using this plugin. It is not confirmed exploited in the provided sources, but it is remotely reachable and could affect logged-in users if they follow a malicious link.
Technical view
The issue is reflected cross-site scripting in the plugin’s 'template' parameter, caused by insufficient input sanitization and output escaping. It is categorized as CWE-79 and rated CVSS 7.2 by the source bundle. Wordfence and WordPress Trac references identify the vulnerable code path and a related code changeset.
Likely exposure
Exposure is limited to WordPress sites using RSS Aggregator versions up to and including 5.0.10. Unauthenticated attackers may reach the vulnerable parameter, but successful impact depends on getting a user to interact with a crafted request.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. The description requires user deception, such as clicking a link. The CVSS vector in the bundle lists UI:N, which conflicts with the narrative requiring user action.
Researcher notes
Focus review on parameter handling around DisplaysStore.php and the Trac changeset. Avoid assuming a fixed release from the sources alone; the bundle shows vulnerable versions through 5.0.10 and code references, but does not clearly name a patched release.
Mitigation direction
- Inventory WordPress sites for the RSS Aggregator plugin and record installed versions.
- Prioritize sites running RSS Aggregator 5.0.10 or earlier for review.
- Check the vendor, WordPress plugin page, or Wordfence for fixed-version guidance.
- Apply the vendor-recommended update when available and test site functionality afterward.
- Consider temporarily disabling the plugin where business impact is acceptable.
Validation and detection
- Confirm plugin presence and version from WordPress admin or asset inventory.
- Review Wordfence advisory details for the affected version range.
- Compare local plugin code against the referenced WordPress Trac changeset.
- Check web logs for unusual requests involving the 'template' parameter.
- Verify remediation by confirming the installed version is no longer affected per vendor guidance.
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-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 lookupCVE-2026-1216 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
- High
- CVSS
- 7.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/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:N/S:C/C:L/I:L/A:N3.92.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.2HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/47a10dd4-515c-42d9-82ea-c84f8f7574c5?source=cveCVE reference
- https://plugins.trac.wordpress.org/browser/wp-rss-aggregator/trunk/core/src/Store/DisplaysStore.php#L106CVE reference
- https://plugins.trac.wordpress.org/browser/wp-rss-aggregator/tags/5.0.10/core/src/Store/DisplaysStore.php#L106CVE reference
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3439384%40wp-rss-aggregator%2Ftrunk&old=3421137%40wp-rss-aggregator%2Ftrunk&sfp_email=&sfph_mail=CVE 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.
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.