CVE-2019-25147Public exploitNetwork attack vector

Stored XSS via unsanitized click-tracking headers

Published Jun 7, 2023 · Updated Apr 8, 2026

Stored XSS in Pretty Links before 2.1.10 allows remote attackers to inject scripts through forged click-tracking headers. The track_link function stores unvalidated HTTP_REFERER and proxy-supplied client IP headers, and the Clicks administration view echoes those values without output sanitization. The payload runs only when an authenticated administrator opens that view, executing in the administrator's browser context.

CVSS severity7.2
High
EPSS probability0.75%
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 Pretty Links before 2.1.10 allows remote attackers to inject scripts through forged click-tracking headers. The track_link function stores unvalidated HTTP_REFERER and proxy-supplied client IP headers, and the Clicks administration view echoes those values without output sanitization. The payload runs only when an authenticated administrator opens that view, executing in the administrator's browser context.

The record

CVE
CVE-2019-25147
Published
Jun 7, 2023
Updated
Apr 8, 2026
Vendor
Caseproof, LLC
Product
PrettyLinks
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record 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 <2.1.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Caseproof, LLC · PrettyLinksversion=0 <2.1.10

Published CVSS scores

7.2WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/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 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 exploitPublished

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

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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