CVE-2012-1256 — The single sign-on (SSO) implementation in EasyVista before 2010.1.1.89 allows remote attackers to bypass authentication via a modified url_account parameter, in conjunction with a valid login name in the SSPI_HEADER parameter, to index.php

Back Back to CVE browser

MEDIUM

The single sign-on (SSO) implementation in EasyVista before 2010.1.1.89 allows remote attackers to bypass authentication via a modified url_account parameter, in conjunction with a valid login name in the SSPI_HEADER parameter, to index.php

Published Feb 22, 2012

5.0

MEDIUM

CVSS 2.0

EPSS 1.49%

Description

The single sign-on (SSO) implementation in EasyVista before 2010.1.1.89 allows remote attackers to bypass authentication via a modified url_account parameter, in conjunction with a valid login name in the SSPI_HEADER parameter, to index.php.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.49% 0.01494

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.01494

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (10 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	1.49% (0.01494)	73.22th	v5 (v2026.06.15)
Jun 15, 2026	1.51% (0.01512)	71.06th	v5 (v2026.06.15)
Mar 17, 2025	0.39% (0.00391)	58.07th	v4 (v2025.03.14)
Dec 12, 2024	0.53% (0.00535)	77.95th	v3 (v2023.03.01)
Feb 8, 2024	0.53% (0.00535)	76.49th	v3 (v2023.03.01)
Mar 7, 2023	0.53% (0.00535)	73.62th	v3 (v2023.03.01)
Mar 6, 2023	1.05% (0.01055)	52.13th	v2 (v2022.01.01)
Sep 17, 2022	1.05% (0.01055)	50.47th	v2 (v2022.01.01)
Apr 1, 2022	1.05% (0.01055)	48.43th	v2 (v2022.01.01)
Feb 4, 2022	1.05% (0.01055)	27.52th	v2 (v2022.01.01)

Weaknesses (1)

CWE-287

Improper Authentication

References (2)

http://secunia.com/advisories/48124
third-party-advisoryx_refsource_SECUNIA
http://www.kb.cert.org/vuls/id/273502
third-party-advisoryx_refsource_CERT-VNUS Government Resource

Link	Providers	Tags
http://secunia.com/advisories/48124		third-party-advisoryx_refsource_SECUNIA
http://www.kb.cert.org/vuls/id/273502		third-party-advisoryx_refsource_CERT-VNUS Government Resource

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Feb 22, 2012

Updated Aug 6, 2024

Reserved Feb 21, 2012

Link CVE-2012-1256

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2012-1256

Red Hat

Severity n/a

Public date n/a

Links CVE-2012-1256