Security readout for executives and security teams
Plain-English summary
This CVE describes a cross-site scripting flaw in ndk design NdkAdvancedCustomizationFields 3.5.0 through createPdf.php. If reachable, it could let attacker-controlled script run in a user's browser after interaction, creating limited data exposure or content manipulation risk.
Executive priority
Handle as a moderate web application risk. Prioritize internet-facing sites and customer or admin workflows where session trust or user data could be affected. The urgency is lower than remote code execution, but public proof-of-concept availability supports timely validation.
Technical view
The record maps to CWE-79 with CVSS 3.1 score 6.1. The vector indicates network access, low attack complexity, no privileges, required user interaction, changed scope, low confidentiality and integrity impact, and no availability impact. The source bundle does not name a fixed version.
Likely exposure
Likely exposure is limited to sites running NdkAdvancedCustomizationFields 3.5.0 where createPdf.php is accessible. The affected product metadata is incomplete in the CVE record, so teams should confirm exposure from local asset inventory and application files.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. The GitHub reference is a public proof-of-concept reference, but this analysis does not rely on or reproduce exploit steps. User interaction is required according to the CVSS vector.
Researcher notes
The public record is sparse: affected vendor/product CPEs are not populated, and no patch details are included. The strongest technical facts are the product/version in the description, createPdf.php location, CWE-79 classification, CVSS vector, and non-KEV status from the supplied bundle.
Mitigation direction
- Inventory any use of NdkAdvancedCustomizationFields and confirm whether version 3.5.0 is present.
- Check vendor or maintainer guidance for fixed versions or official remediation.
- Disable or remove the component if the affected customization feature is unused.
- Restrict public access to createPdf.php where business requirements allow.
- Apply defensive browser controls such as CSP as compensating protection.
Validation and detection
- Confirm whether createPdf.php exists and is reachable on public web properties.
- Verify installed component name and version against NdkAdvancedCustomizationFields 3.5.0.
- Review PDF creation inputs for server-side validation and output encoding.
- Check logs for suspicious requests to createPdf.php around user sessions.
- Retest after remediation without using offensive payloads in production.
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-2022-40840 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
- 6.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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.
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:R/S:C/C:L/I:L/A:N2.82.7CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
6.1MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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/daaaalllii/cve-s/blob/main/CVE-2022-40840/poc.txtCVE 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.
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.