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CVE Record

CVE-2026-1903: Ravelry Designs Widget <= 1.0.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'sb_ravelry_designs' Shortcode 'layout' Attribute

The Ravelry Designs Widget plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'layout' attribute of the 'sb_ravelry_designs' shortcode in all versions up to, and including, 1.0.0. This is due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

MediumCVSS 6.4Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2026-1903 affects the WordPress Ravelry Designs Widget plugin through version 1.0.0. A logged-in user with Contributor-level access or higher can save malicious script through a shortcode setting. That script can run when someone views the affected page, creating risk to site users and administrators.

Executive priority

Treat as a targeted website integrity risk, not an internet-wide emergency. Prioritize sites with many contributors, public registration, or administrators likely to view contributor-created pages. Remove or update the plugin if affected.

Technical view

The flaw is stored cross-site scripting in the `sb_ravelry_designs` shortcode `layout` attribute. Sources attribute it to insufficient sanitization and output escaping of user-supplied shortcode attributes. CVSS is 6.4, network-accessible, low complexity, requires low privileges, and can affect confidentiality and integrity.

Likely exposure

Exposure is limited to WordPress sites that have Ravelry Designs Widget installed at version 1.0.0 or earlier and allow Contributor-level or higher users to create content containing the vulnerable shortcode.

Exploitation context

The source bundle does not indicate active exploitation, and this CVE is not listed as KEV. Exploitation requires authenticated WordPress access at Contributor level or above. Stored XSS can execute in visitors’ browsers when they access an injected page.

Researcher notes

Evidence is strongest for authenticated stored XSS in shortcode handling through version 1.0.0. The provided sources do not name a patched version or confirm exploitation in the wild. Avoid assuming broader impact beyond the Ravelry Designs Widget plugin.

Mitigation direction

  • Inventory WordPress sites for Ravelry Designs Widget version 1.0.0 or earlier.
  • Check vendor and WordPress plugin guidance for an updated release or official fix.
  • Disable or remove the plugin if no fixed version is available.
  • Limit Contributor and higher accounts to trusted users only.
  • Review content using the `sb_ravelry_designs` shortcode for suspicious attributes.

Validation and detection

  • Confirm whether the plugin is installed and identify its version.
  • Search posts and pages for the `sb_ravelry_designs` shortcode.
  • Review shortcode `layout` attributes for unexpected script-like content.
  • Verify Contributor-level users cannot publish risky shortcode content without review.
  • Monitor WordPress security logs for suspicious content edits.
Prepared
Confidence
high
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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

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.

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cve · low confidence lookup

CVE-2026-1903 mapping review

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Vulnerability profileCVE Program record
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

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.

1CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
6.4CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N3.12.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.4Medium
CVSS 3.1 vector shape for CVE-2026-1903Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
shellbotRavelry Designs Widget0unaffected
Weakness

CWE details

CWE-79

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

CWE-79 · source CWE mapping

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.

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