What is the CVSS score of CVE-2012-2991?

CVE-2012-2991 has a CVSS 2.0 base score of 5.0 (Medium). CVSS vector: AV:N/AC:L/Au:N/C:N/I:P/A:N. EPSS exploitation probability: 0.6%.

Paypal CVE-2012-2991

MEDIUM

2012-09-19 cret@cert.org

Information Disclosure Oscommerce Paypal Online Merchant Website Payments Standard Module

5.0

CVSS 2.0 · NVD

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Vulnerability Assessment

Impact	CVSS score of 5.0 (MEDIUM). Attack characteristics: network attack vector, low complexity. EPSS exploitation probability: 0.60%.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.6% exploitation probability (EPSS)

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AnalysisAI

The PayPal (aka MODULE_PAYMENT_PAYPAL_STANDARD) module before 1.1 in osCommerce Online Merchant before 2.3.4 allows remote attackers to set the payment recipient via a modified value of the. Rated medium severity (CVSS 5.0), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

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Technical ContextAI · show details

The PayPal (aka MODULE_PAYMENT_PAYPAL_STANDARD) module before 1.1 in osCommerce Online Merchant before 2.3.4 allows remote attackers to set the payment recipient via a modified value of the merchant's e-mail address, as demonstrated by setting the recipient to one's self. Affected products include: Oscommerce Online Merchant, Paypal Website Payments Standard Module. Version information: before 1.1.

Severity by source

NVD PRIMARY 5.0 MEDIUM

AV:N/AC:L/Au:N/C:N/I:P/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Confidentiality

None

Integrity

Availability

None

DescriptionCVE.org

Threat Intelligence Overview

EPSS Score

0.6%

Top 30% exploitable

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC No

EPSS 0.6%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +1

CVSS: +25

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)CVE.org

cpe:2.3:a:oscommerce:online_merchant:*:*:*:*:*:*:*:*

cpe:2.3:a:oscommerce:online_merchant:2.3.0:*:*:*:*:*:*:*

cpe:2.3:a:oscommerce:online_merchant:2.3.1:*:*:*:*:*:*:*

cpe:2.3:a:oscommerce:online_merchant:2.3.2:*:*:*:*:*:*:*

cpe:2.3:a:paypal:website_payments_standard_module:*:*:*:*:*:*:*:*

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References

Advisories & patches

REF http://secunia.com/advisories/50640 REF http://www.kb.cert.org/vuls/id/459446

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GitHub PoC

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