CVE-2023-26123Public exploitNetwork attack vector

Browser JavaScript execution via unescaped clipboard text

Published Apr 14, 2023 · Updated Feb 6, 2025

Cross-site scripting in raylib before 4.5.0 allows remote attackers to execute JavaScript through PLATFORM_WEB applications. SetClipboardText interpolates its text argument inside a single-quoted navigator.clipboard.writeText call passed to emscripten_run_script without escaping apostrophes. Exploitation requires a web build whose application passes attacker-controlled text to the API and a user to load or interact with the affected page, enabling code execution in that page's browser context.

CVSS severity6.1
Medium
EPSS probability0.58%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in raylib before 4.5.0 allows remote attackers to execute JavaScript through PLATFORM_WEB applications. SetClipboardText interpolates its text argument inside a single-quoted navigator.clipboard.writeText call passed to emscripten_run_script without escaping apostrophes. Exploitation requires a web build whose application passes attacker-controlled text to the API and a user to load or interact with the affected page, enabling code execution in that page's browser context.

The record

CVE
CVE-2023-26123
Published
Apr 14, 2023
Updated
Feb 6, 2025
Vendor
raysan5
Product
raylib
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 14, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 6, 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 <4.5.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

raysan5 · raylibversion=0 <4.5.0

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.1SnykCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 11, 2026Sep 17, 2026
Latest reporting daySep 17, 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')
T1059.007Command and Scripting Interpreter: JavaScript

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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