CVE-2013-7351Network attack vector

Browser script execution via unescaped request data

Published Jan 2, 2020 · Updated Aug 6, 2024

Cross-site scripting in Shaarli index.php allows remote attackers to execute arbitrary script in a visitor's browser via crafted URLs. Feed functions place the unescaped pageUrl() value in RSS or ATOM comments, while importFile places an unencoded filename inside a JavaScript alert. The feed vectors require no privileges but require a victim to open or consume the crafted response, exposing data and actions available to the Shaarli origin.

CVSS severity6.1
Medium
EPSS probability2.21%
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 Shaarli index.php allows remote attackers to execute arbitrary script in a visitor's browser via crafted URLs. Feed functions place the unescaped pageUrl() value in RSS or ATOM comments, while importFile places an unencoded filename inside a JavaScript alert. The feed vectors require no privileges but require a victim to open or consume the crafted response, exposing data and actions available to the Shaarli origin.

The record

CVE
CVE-2013-7351
Published
Jan 2, 2020
Updated
Aug 6, 2024
Vendor
Shaarli
Product
Shaarli
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 2, 2020CVE 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?

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

  1. Affected versionversion=before 53da201749f8f362323ef278bf338f1d9f7a925a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Shaarli · Shaarliversion=before 53da201749f8f362323ef278bf338f1d9f7a925a

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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

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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