CVE-2025-7953Public exploitNetwork attack vector

Visitor redirection via unvalidated PDF file parameter

Published Jul 22, 2025 · Updated Jul 22, 2025

Open redirect in PublicCMS 5.202506.a and earlier allows remote authenticated users to redirect iOS visitors through crafted viewer links. The PDF.js viewer reads the file query parameter without validation and assigns it to document.location.href for iPhone, iPad, and iPod user agents. Exploitation requires a visitor using one of those devices to open the crafted link, after which the browser navigates to an attacker-chosen site.

CVSS severity3.5
Low
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Open redirect in PublicCMS 5.202506.a and earlier allows remote authenticated users to redirect iOS visitors through crafted viewer links. The PDF.js viewer reads the file query parameter without validation and assigns it to document.location.href for iPhone, iPad, and iPod user agents. Exploitation requires a visitor using one of those devices to open the crafted link, after which the browser navigates to an attacker-chosen site.

The record

CVE
CVE-2025-7953
Published
Jul 22, 2025
Updated
Jul 22, 2025
Vendor
Tianjin Black Core Technology Co., LTD.
Product
PublicCMS
Classifications
CWE-601
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 22, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 22, 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=5.202506.a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Tianjin Black Core Technology Co., LTD. · PublicCMSversion=5.202506.a

Published CVSS scores

2.0VulDBCVSS: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
3.5VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
2.5VulDBAV:N/AC:L/Au:S/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-601URL Redirection to Untrusted Site ('Open Redirect')

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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