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CVE Record

CVE-2018-19048: Simditor through 2.3.21 allows DOM XSS via an onload attribute within a malformed SVG element.

Simditor through 2.3.21 allows DOM XSS via an onload attribute within a malformed SVG element.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Simditor through 2.3.21 can mishandle malformed SVG content in a way that allows browser-side script execution. Business risk depends on whether the editor processes untrusted or user-submitted HTML. The source bundle does not provide CVSS scoring or evidence of active exploitation.

Executive priority

Prioritize remediation if Simditor is used in customer-facing forms, admin portals, CMS workflows, or stored-content features. If Simditor is absent or only used with trusted internal content, urgency is lower but inventory should still be confirmed.

Technical view

CVE-2018-19048 is a DOM XSS issue in Simditor through 2.3.21 involving an onload attribute inside a malformed SVG element. References include a public report/demo, an upstream commit, and the v2.3.22 release. No CWE or CVSS details are provided in the bundle.

Likely exposure

Exposure is most likely in applications bundling Simditor 2.3.21 or earlier where untrusted content can enter the editor or be rendered back to users. The bundle does not identify specific downstream products or deployment patterns.

Exploitation context

The CVE is not listed as KEV in the supplied data. Public references include demonstration material, but the bundle does not cite active exploitation in the wild. Treat it as plausible where attacker-controlled HTML reaches affected Simditor code.

Researcher notes

Evidence is concise: the CVE description names DOM XSS, affected range through 2.3.21, and the malformed SVG onload vector. The v2.3.22 release and upstream commit are the main remediation indicators. CVSS, CWE, and exploitation telemetry are absent.

Mitigation direction

  • Upgrade Simditor from 2.3.21 or earlier to v2.3.22 or a later validated release.
  • Review vendor commit and release notes before deploying the update.
  • Restrict untrusted HTML entering editor workflows where feasible.
  • Use server-side sanitization for stored or reflected rich-text content.
  • Apply CSP as defense in depth, not as the sole fix.

Validation and detection

  • Inventory bundled Simditor versions in dependencies and static assets.
  • Find public routes that load Simditor or render Simditor-authored content.
  • Confirm no deployed asset references Simditor 2.3.21 or earlier.
  • Review rich-text sanitization controls around SVG and event attributes.
  • Regression-test editor rendering without using offensive payloads.
Prepared
Confidence
medium
Sources
6

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

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

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CVE-2018-19048 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
0Timeline events
0ADP providers
5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

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.