CVE-2025-15056Public exploitNetwork attack vector

Cross-site scripting via unescaped embed HTML export

Published Jan 13, 2026 · Updated Jan 13, 2026

Cross-site scripting in Slab Quill 2.0.3 allows remote attackers to execute script in a victim's browser through exported HTML. The formula and video blots interpolate user-controlled values into html() strings without escaping, allowing quotes or closing tags to inject attributes or markup. Exploitation requires an application to call getSemanticHTML() or getHTML() and render the exported result as HTML, giving the injected script the application's browser context.

CVSS severity5.1
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Slab Quill 2.0.3 allows remote attackers to execute script in a victim's browser through exported HTML. The formula and video blots interpolate user-controlled values into html() strings without escaping, allowing quotes or closing tags to inject attributes or markup. Exploitation requires an application to call getSemanticHTML() or getHTML() and render the exported result as HTML, giving the injected script the application's browser context.

The record

CVE
CVE-2025-15056
Published
Jan 13, 2026
Updated
Jan 13, 2026
Vendor
Anchore
Product
Quill
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Anchore · Quillversion=2.0.3

Published CVSS scores

5.1Fluid AttacksCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N
2.0GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:P
6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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