Security readout for executives and security teams
Plain-English summary
CVE-2026-39292 is a high-severity arbitrary file upload issue in PHPPageBuilder v0.31.0. The source says attackers can upload files that may execute on the server, leading to remote code execution. The CVE metadata does not name a confirmed patch, and product metadata is incomplete.
Executive priority
Prioritize internet-facing PHPPageBuilder deployments this week. The issue is remote, unauthenticated, and can lead to code execution, but the source bundle does not prove active exploitation or identify a patch.
Technical view
The vulnerability is CWE-434 in the pagemanager/pagebuilder module, caused by insufficient validation of uploaded file types and executable content. CVSS 3.1 is 7.3 with network attack vector, low complexity, no privileges, and no user interaction required. Impact is rated low across confidentiality, integrity, and availability.
Likely exposure
Exposure is most likely in internet-accessible PHPPageBuilder v0.31.0 deployments with the pagemanager/pagebuilder upload functionality reachable. The CVE affected-product fields are marked n/a, so asset confirmation must come from application inventories, source repositories, or deployed package inspection.
Exploitation context
The bundle does not show CISA KEV listing or confirmed active exploitation. It does include a public GitHub CVE reference, and the CVSS vector indicates remote unauthenticated attack potential. Treat public-facing instances as urgent until vendor guidance clarifies patch status.
Researcher notes
The CVE record provides limited affected-product metadata despite naming PHPPageBuilder v0.31.0 in the description. Validate exposure against actual code and deployment paths before broad conclusions. Avoid assuming patched versions until vendor or maintainer guidance is confirmed.
Mitigation direction
- Identify all PHPPageBuilder v0.31.0 deployments and owners.
- Check the upstream project and CVE record for vendor remediation guidance.
- Restrict access to the affected pagemanager/pagebuilder upload functionality.
- Ensure uploaded files cannot execute from web-accessible directories.
- Review web logs and uploaded files for suspicious activity.
Validation and detection
- Confirm whether deployed code matches PHPPageBuilder v0.31.0.
- Review upload handling for strict file type and content validation.
- Verify uploaded content is stored outside executable web paths.
- Check server configuration blocks script execution in upload directories.
- Search logs for unexpected upload activity around public endpoints.
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-434: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-39292 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
- 7.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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.
SSVC decision data
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:U/C:L/I:L/A:L3.93.4CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
7.3HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/HansSchouten/PHPageBuilderCVE reference, mitre
- https://github.com/krishnadevpmelevila/CVE-2026-39292/tree/mainCVE reference, mitre
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.
Unrestricted Upload of File with Dangerous Type
Unrestricted Upload of File with Dangerous Type represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.