How severe is CVE-2013-4557?

CVE-2013-4557 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2013-4557 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 25% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-4557?

CVE-2013-4557 primarily affects Spip. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-4557?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2013-4557 published?

CVE-2013-4557 was published on 2013-11-18 and last updated on 2026-06-16.

CVE-2013-4557

CVE-2013-4557 is a high-severity vulnerability in Spip with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 25% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-94.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 25% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Spip
Published: 2013-11-18
Last modified: 2026-06-16

Description

The Security Screen (_core_/securite/ecran_securite.php) before 1.1.8 for SPIP, as used in SPIP 3.0.x before 3.0.12, allows remote attackers to execute arbitrary PHP via the connect parameter.

Frequently asked questions

What is CVE-2013-4557?: The Security Screen (_core_/securite/ecran_securite.php) before 1.1.8 for SPIP, as used in SPIP 3.0.x before 3.0.12, allows remote attackers to execute arbitrary PHP via the connect parameter.
How severe is CVE-2013-4557?: CVE-2013-4557 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2013-4557 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 25% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4557?: CVE-2013-4557 primarily affects Spip. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-4557?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2013-4557 published?: CVE-2013-4557 was published on 2013-11-18 and last updated on 2026-06-16.

References

Affected products (12)

cpe:2.3:a:spip:spip:3.0.0:*:*:*:*:*:*:*
cpe:2.3:a:spip:spip:3.0.1:*:*:*:*:*:*:*
cpe:2.3:a:spip:spip:3.0.2:*:*:*:*:*:*:*
cpe:2.3:a:spip:spip:3.0.3:*:*:*:*:*:*:*
cpe:2.3:a:spip:spip:3.0.4:*:*:*:*:*:*:*
cpe:2.3:a:spip:spip:3.0.5:*:*:*:*:*:*:*
cpe:2.3:a:spip:spip:3.0.6:*:*:*:*:*:*:*
cpe:2.3:a:spip:spip:3.0.7:*:*:*:*:*:*:*
cpe:2.3:a:spip:spip:3.0.8:*:*:*:*:*:*:*
cpe:2.3:a:spip:spip:3.0.9:*:*:*:*:*:*:*
cpe:2.3:a:spip:spip:3.0.10:*:*:*:*:*:*:*
cpe:2.3:a:spip:spip:3.0.11:*:*:*:*:*:*:*

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