CVE-2025-11594Public exploitNetwork attack vector

Cart total manipulation via unchecked quantity input

Published Oct 11, 2025 · Updated Oct 14, 2025

Improper quantity validation in ywxbear PHP Basic BookStore Website allows remote attackers to alter cart totals through crafted purchase requests. The /index.php quantity handler inserts the raw POST quantity into a cart row and computes TotalPrice by multiplying Price by that unchecked value. The affected flow accepts unauthenticated remote requests, and negative or otherwise invalid quantities can reduce the recorded amount owed without exposing data or interrupting the service.

CVSS severity5.3
Medium
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper quantity validation in ywxbear PHP Basic BookStore Website allows remote attackers to alter cart totals through crafted purchase requests. The /index.php quantity handler inserts the raw POST quantity into a cart row and computes TotalPrice by multiplying Price by that unchecked value. The affected flow accepts unauthenticated remote requests, and negative or otherwise invalid quantities can reduce the recorded amount owed without exposing data or interrupting the service.

The record

CVE
CVE-2025-11594
Published
Oct 11, 2025
Updated
Oct 14, 2025
Vendor
ywxbear
Product
PHP Basic BookStore Website
Classifications
CWE-703, CWE-1284, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 14, 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=0e0b9f542f7a2d90a8d7f8c83caca69294e234e4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ywxbear · PHP Basic BookStore Websiteversion=0e0b9f542f7a2d90a8d7f8c83caca69294e234e4

Published CVSS scores

5.5VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
5.0VulDBAV:N/AC:L/Au:N/C:N/I:P/A:N
5.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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-703Improper Check or Handling of Exceptional Conditions
CWE-1284Improper Validation of Specified Quantity in Input
T1565.001Stored Data Manipulation

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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