CVE-2017-10993

CVE-2017-10993 is a high-severity vulnerability in Contao Contao Cms with a CVSS 3.x base score of 8.8. 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-22.

Key facts

• Severity: High (CVSS 3.x base score 8.8)
• CVSS v2: 6.5
• EPSS exploit prediction: 2% (78th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-22
• Affected product: Contao Contao Cms
• Published: 2017-07-21
• Last modified: 2026-06-17

Description

Contao before 3.5.28 and 4.x before 4.4.1 allows remote attackers to include and execute arbitrary local PHP files via a crafted parameter in a URL, aka Directory Traversal.

Frequently asked questions

What is CVE-2017-10993?

Contao before 3.5.28 and 4.x before 4.4.1 allows remote attackers to include and execute arbitrary local PHP files via a crafted parameter in a URL, aka Directory Traversal.

How severe is CVE-2017-10993?

CVE-2017-10993 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-10993 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-10993?

CVE-2017-10993 primarily affects Contao Contao Cms. In total, 38 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-10993?

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-2017-10993 published?

CVE-2017-10993 was published on 2017-07-21 and last updated on 2026-06-17.

References

• https://contao.org/en/news/contao-3_5_28.html

Affected products (38)

• cpe:2.3:a:contao:contao_cms:*:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.0.0:beta1:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.0.0:rc1:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.1.0:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.1.0:beta1:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.1.0:rc1:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.1.2:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.1.3:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.2.0:beta1:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.2.0:rc1:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.2.3:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.2.4:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.2.5:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.3.0:rc1:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.3.2:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.3.3:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.3.5:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.3.6:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.3.7:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.3.8:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.3.9:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.3.10:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.3.11:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.4.0:*:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.4.0:beta1:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.4.0:rc1:*:*:*:*:*:*
• cpe:2.3:a:contao:contao_cms:4.4.0:rc2:*:*:*:*:*:*

More vulnerabilities in Contao Contao Cms

• CVE-2014-1860 — Critical (CVSS 9.8): Contao CMS through 3.2.4 has PHP Object Injection Vulnerabilities
• CVE-2017-16558 — Critical (CVSS 9.8): Contao 3.0.0 to 3.5.30 and 4.0.0 to 4.4.7 contains an SQL injection vulnerability in the back end as well as in the…
• CVE-2019-10643 — Critical (CVSS 9.8): Contao 4.7 allows Use of a Key Past its Expiration Date.
• CVE-2019-10641 — Critical (CVSS 9.8): Contao before 3.5.39 and 4.x before 4.7.3 has a Weak Password Recovery Mechanism for a Forgotten Password.
• CVE-2019-10642 — High (CVSS 8.8): Contao 4.7 allows CSRF.
• CVE-2012-1297 — Medium (CVSS 6.8): Multiple cross-site request forgery (CSRF) vulnerabilities in main.php in Contao (formerly TYPOlight) 2.11.0 and…

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