CVE-2025-27108Network attack vector

Cross-site scripting via replacement-token expansion

Published Feb 21, 2025 · Updated Feb 24, 2025

Cross-site scripting in DOM Expressions before 0.39.5 allows remote attackers to execute JavaScript via crafted asset attributes. The server-side injectAssets path passes attacker-controlled output as the replacement string to String.replace, so special dollar-prefixed tokens splice surrounding HTML into the result. Exposure requires an application, such as a solid-meta deployment, to place user-controlled data in an asset tag; the resulting script runs in a visitor's browser and can be stored.

CVSS severity7.3
High
EPSS probability0.28%
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 DOM Expressions before 0.39.5 allows remote attackers to execute JavaScript via crafted asset attributes. The server-side injectAssets path passes attacker-controlled output as the replacement string to String.replace, so special dollar-prefixed tokens splice surrounding HTML into the result. Exposure requires an application, such as a solid-meta deployment, to place user-controlled data in an asset tag; the resulting script runs in a visitor's browser and can be stored.

The record

CVE
CVE-2025-27108
Published
Feb 21, 2025
Updated
Feb 24, 2025
Vendor
Ryan Carniato
Product
DOM Expressions
Classifications
CWE-116, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 21, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 24, 2025Record 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=< 0.39.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ryan Carniato · DOM Expressionsversion=< 0.39.5

Published CVSS scores

7.3GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-116Improper Encoding or Escaping of Output
T1059.007JavaScript

Public exploit references

No public exploit references are available in this record.

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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