Security readout for executives and security teams
Plain-English summary
This is a WordPress plugin cross-site scripting issue in Post Duplicator 2.18. An authenticated user could manipulate a plugin notice parameter so script runs in another user’s browser. Business impact is usually limited, but it can affect admin trust and site integrity if exposed accounts can access the vulnerable workflow.
Executive priority
Handle during normal vulnerability remediation, with faster action for externally managed WordPress sites or sites with many authenticated contributors. This is not evidenced as actively exploited, but the upgrade path is clear and low-friction.
Technical view
CWE-79 XSS exists in mtphr_post_duplicator_notice within includes/notices.php. The vulnerable input is the post-duplicated argument. CVSS v2 is 4.0: network reachable, low complexity, authentication required, partial integrity impact, and no stated confidentiality or availability impact. Version 2.19 addresses the issue.
Likely exposure
Exposure is limited to WordPress sites running meta4creations Post Duplicator Plugin version 2.18. Risk is higher where lower-privileged authenticated users can access plugin-related admin flows or influence URLs viewed by privileged users.
Exploitation context
The source bundle says remote attack is possible and permissions are required. The CVE is not listed as KEV, and no provided source confirms active exploitation or weaponization. Treat this as an authenticated, plugin-specific XSS issue unless new vendor or threat intelligence says otherwise.
Researcher notes
Key evidence comes from VulDB and the vendor GitHub patch/release references. The sources identify the affected function, file, parameter, version, CWE, CVSS, and fixed release. They do not provide evidence of KEV listing, active exploitation, or broader affected versions.
Mitigation direction
- Upgrade Post Duplicator Plugin to version 2.19 or later.
- Confirm deployed plugin code includes patch ca67c05e490c0cf93a1e9b2d93bfeff3dd96f594.
- Review WordPress user roles with access to plugin administration paths.
- Monitor vendor and CVE guidance for later clarification or superseding fixes.
Validation and detection
- Inventory WordPress sites for Post Duplicator Plugin version 2.18.
- Confirm the running plugin version reports 2.19 or later after update.
- Review admin access logs for suspicious plugin notice parameter activity.
- Verify no unsupported forked copy of includes/notices.php remains deployed.
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-2016-15027 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 (2.0)
- Known Exploited
- No
- Published
Vector: AV:N/AC:L/Au:S/C:N/I:P/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.
AV:N/AC:L/Au:S/C:N/I:P/A:N82.9Primary CVE scoreVulnerability scoring details
Base CVSS 2.0 score
4MediumVector: AV:N/AC:L/Au:S/C:N/I:P/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://vuldb.com/?id.221496CVE reference · vdb-entry, technical-description
- https://vuldb.com/?ctiid.221496CVE reference · signature, permissions-required
- https://github.com/meta4creations/post-duplicator/commit/ca67c05e490c0cf93a1e9b2d93bfeff3dd96f594CVE reference · patch
- https://github.com/meta4creations/post-duplicator/releases/tag/2.19CVE reference · patch
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.