CVE-2025-12269Public exploitNetwork attack vector

Stored XSS via unsanitized SVG image uploads

Published Oct 27, 2025 · Updated Oct 27, 2025

Stored XSS in LearnHouse through commit 98dfad76aad70711a8113f6c1fdabfccf10509ca allows remote authenticated users to execute JavaScript. Account-setting preview uploads accept SVG images without sanitizing script tags or event handlers and serve them from accessible URLs. An attacker must upload a crafted SVG, and execution requires another user to view it; the script runs with that viewer's browser-session privileges.

CVSS severity5.4
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

Stored XSS in LearnHouse through commit 98dfad76aad70711a8113f6c1fdabfccf10509ca allows remote authenticated users to execute JavaScript. Account-setting preview uploads accept SVG images without sanitizing script tags or event handlers and serve them from accessible URLs. An attacker must upload a crafted SVG, and execution requires another user to view it; the script runs with that viewer's browser-session privileges.

The record

CVE
CVE-2025-12269
Published
Oct 27, 2025
Updated
Oct 27, 2025
Vendor
LearnHouse
Product
LearnHouse
Classifications
CWE-94, CWE-79, T1204.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 27, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 27, 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=98dfad76aad70711a8113f6c1fdabfccf10509ca

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

LearnHouse · LearnHouseversion=98dfad76aad70711a8113f6c1fdabfccf10509ca

Published CVSS scores

2.0VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
4.0VulDB CNAAV:N/AC:L/Au:S/C:N/I:P/A:N
3.5VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.002User Execution: Malicious File

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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