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CVE Record

CVE-2022-40440: mxGraph v4.2.2 was discovered to contain a cross-site scripting (XSS) vulnerability via the setTooltips() f...

mxGraph v4.2.2 was discovered to contain a cross-site scripting (XSS) vulnerability via the setTooltips() function.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2022-40440 is a reported cross-site scripting issue in mxGraph v4.2.2 involving the setTooltips() function. If an application feeds unsafe user-controlled content into this path, browser-executed script could affect users of that application. The source bundle does not provide a CVSS score, patch version, or confirmed impacted downstream products.

Executive priority

Prioritize identification over emergency response unless mxGraph v4.2.2 is present in internet-facing workflows. The missing CVSS, missing fix data, and no KEV listing reduce certainty, but XSS in user-facing applications can still create account and data exposure risk.

Technical view

The CVE describes XSS in mxGraph 4.2.2 via setTooltips(). The bundle does not include CWE, CVSS, detailed preconditions, fixed release information, or affected CPEs. Exposure depends on whether a deployed application embeds this mxGraph version and allows untrusted content to influence tooltip rendering.

Likely exposure

Likely exposure is limited to applications that bundle or depend on mxGraph v4.2.2 and use setTooltips() with attacker-influenced content. The CVE record does not identify named downstream products or package coordinates.

Exploitation context

The source bundle lists a public vulnerability wiki reference, but it does not establish active exploitation. CISA KEV status is false, so do not treat this as known exploited based on the supplied evidence.

Researcher notes

Key gaps are exploitability conditions, sanitization behavior, affected integration patterns, and fixed-version status. Validate against the referenced CVE and project materials before assigning severity. Do not generalize exposure to all products that ever used mxGraph without dependency evidence.

Mitigation direction

  • Inventory applications and vendor products that include mxGraph v4.2.2.
  • Check mxGraph and product vendor guidance for fixed versions or official mitigations.
  • Avoid passing untrusted content into tooltip-related rendering paths.
  • Encode or sanitize tooltip content where business logic requires user-supplied values.
  • Use CSP as defense in depth, not as the primary fix.

Validation and detection

  • Search software bills of materials for mxGraph v4.2.2.
  • Review application code for setTooltips() calls using external or user-controlled data.
  • Confirm whether tooltip content is encoded before browser rendering.
  • Test affected workflows safely in a non-production environment with benign XSS markers.
  • Document compensating controls and remaining unknowns for vulnerable deployments.
Prepared
Confidence
medium
Sources
4

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2022-40440 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
3Timeline events
1ADP providers
3Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.