How severe is CVE-2007-2546?

CVE-2007-2546 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2007-2546 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-2546?

CVE-2007-2546 affects Simple Machines Simple Machines Forum. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-2546?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2007-2546 published?

CVE-2007-2546 was published on 2007-05-09 and last updated on 2026-06-16.

CVE-2007-2546

CVE-2007-2546 is a medium-severity vulnerability in Simple Machines Simple Machines Forum with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Simple Machines Simple Machines Forum
Published: 2007-05-09
Last modified: 2026-06-16

Description

Session fixation vulnerability in Simple Machines Forum (SMF) 1.1.2 and earlier allows remote attackers to hijack web sessions by setting the PHPSESSID parameter.

Frequently asked questions

What is CVE-2007-2546?: Session fixation vulnerability in Simple Machines Forum (SMF) 1.1.2 and earlier allows remote attackers to hijack web sessions by setting the PHPSESSID parameter.
How severe is CVE-2007-2546?: CVE-2007-2546 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2007-2546 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-2546?: CVE-2007-2546 affects Simple Machines Simple Machines Forum. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-2546?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-2546 published?: CVE-2007-2546 was published on 2007-05-09 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:simple_machines:simple_machines_forum:*:*:*:*:*:*:*:*

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