CVE-2025-63529Public exploitNetwork attack vector

Account hijacking via retained pre-authentication session ID

Published Dec 1, 2025 · Updated Dec 1, 2025

Session fixation in Blood Bank Management System 1.0 allows remote attackers to hijack user accounts through a preset PHP session ID. login.php accepts the supplied PHPSESSID, and successful authentication leaves the same identifier active instead of regenerating it. The attack requires a victim to authenticate with the fixed identifier, after which the attacker can reuse it to access the victim's account.

CVSS severity6.1
Medium
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Session fixation in Blood Bank Management System 1.0 allows remote attackers to hijack user accounts through a preset PHP session ID. login.php accepts the supplied PHPSESSID, and successful authentication leaves the same identifier active instead of regenerating it. The attack requires a victim to authenticate with the fixed identifier, after which the attacker can reuse it to access the victim's account.

The record

CVE
CVE-2025-63529
Published
Dec 1, 2025
Updated
Dec 1, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-384, T1539
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 1, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 1, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.1MITRECVSS: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.

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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 exploitPublished

Weakness, pattern, technique

CWE-384Session Fixation
T1539Steal Web Session Cookie

Public exploit references

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Technologies

Your stack

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Your stack

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