CVE-2013-2499Network attack vector

Unauthenticated access via spoofed session cookie

Published Jan 27, 2020 · Updated Aug 6, 2024

Authentication bypass in SimpleHRM 2.3 and earlier allows remote attackers to access protected application data via a spoofed cookie. The user_manager.php authentication path accepts a spoofed cookie as proof of an authenticated session; public disclosures do not identify the cookie name or validation logic. No credentials or user interaction are required, and the documented impact is unauthorized disclosure rather than data modification or service interruption.

CVSS severity7.5
High
EPSS probability3.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in SimpleHRM 2.3 and earlier allows remote attackers to access protected application data via a spoofed cookie. The user_manager.php authentication path accepts a spoofed cookie as proof of an authenticated session; public disclosures do not identify the cookie name or validation logic. No credentials or user interaction are required, and the documented impact is unauthorized disclosure rather than data modification or service interruption.

The record

CVE
CVE-2013-2499
Published
Jan 27, 2020
Updated
Aug 6, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-200, T1550.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 27, 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?

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

5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1550.004Web Session Cookie

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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