CVE-2015-10058Network attack vector

Cross-site scripting via unencoded lang error output

Published Jan 17, 2023 · Updated Aug 6, 2024

Cross-site scripting in Wikisource Category Browser index.php allows remote attackers to run script in a user’s browser via the lang parameter. The script assigns the lang query value directly to $lang and interpolates it into the unsupported-language error message without HTML encoding. Exploitation requires a user to open a crafted request containing an unknown language value, allowing attacker-controlled script to execute in that user’s site context.

CVSS severity6.1
Medium
EPSS probability0.52%
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 Wikisource Category Browser index.php allows remote attackers to run script in a user’s browser via the lang parameter. The script assigns the lang query value directly to $lang and interpolates it into the unsupported-language error message without HTML encoding. Exploitation requires a user to open a crafted request containing an unknown language value, allowing attacker-controlled script to execute in that user’s site context.

The record

CVE
CVE-2015-10058
Published
Jan 17, 2023
Updated
Aug 6, 2024
Vendor
Wikisource
Product
Wikisource Category Browser
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 17, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=n/a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Wikisource · Wikisource Category Browserversion=n/a

Published CVSS scores

3.5VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
6.1NIST NVDCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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