Security readout for executives and security teams
Plain-English summary
CVE-2026-2569 affects the Dear Flipbook WordPress plugin through version 2.4.20. A logged-in user with Author-level access or higher could store malicious script in PDF page labels. That script may run when someone views the affected page, creating risk to site users and administrators.
Executive priority
Treat as a moderate-priority WordPress application risk. Prioritize sites with many content contributors, public registration, contractors, or shared Author accounts. This is not reported as actively exploited, but stored XSS can support account abuse and site trust damage.
Technical view
This is a stored cross-site scripting issue in Dear Flipbook caused by insufficient input sanitization and output escaping for PDF page labels. The CVSS 3.1 score is 6.4. The attack requires authenticated low-privilege access, is network reachable, and can affect confidentiality and integrity in the user’s browser context.
Likely exposure
Exposure is most likely on WordPress sites using Dear Flipbook up to and including version 2.4.20, especially sites allowing Authors or similar roles to create or manage flipbook/PDF content.
Exploitation context
The provided sources do not state active exploitation, and the CVE is not marked as CISA KEV. Exploitation requires an authenticated Author-level or higher account, reducing internet-wide risk but increasing concern for multi-user WordPress sites.
Researcher notes
Primary evidence comes from the CVE description, Wordfence reference, and WordPress plugin changeset. The affected metadata in the bundle appears incomplete, while the narrative states all versions up to 2.4.20 are affected. No specific fixed version is named in the provided bundle.
Mitigation direction
- Identify WordPress sites using Dear Flipbook.
- Check whether the installed version is within the vulnerable range.
- Update according to the plugin vendor or WordPress plugin repository guidance.
- Restrict Author-level access to trusted users only.
- Review existing flipbook/PDF content for unexpected script-like content.
Validation and detection
- Confirm Dear Flipbook version on each WordPress site.
- Verify no vulnerable versions remain installed.
- Review user roles with Author privileges or higher.
- Check whether PDF page labels contain unexpected markup.
- Monitor WordPress security logs for suspicious content changes.
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-2026-2569 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
- 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
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:L/UI:N/S:C/C:L/I:L/A:N3.12.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source materials
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.