Multiple vulnerabilities in Contao

1) Cross-site scripting

EUVDB-ID: #VU88878

Risk: Low

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-28190

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the file manager. A remote user can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Contao: 4.0 - 5.3.3

External links

http://github.com/contao/contao/security/advisories/GHSA-v24p-7p4j-qvvf
http://github.com/contao/contao/commit/878d28dbe0f408740555d6fc8b634bd3f8febfce
http://github.com/contao/contao/commit/b794e14fff070101bf6a885da9b1a83395093b4d
http://contao.org/en/security-advisories/cross-site-scripting-in-the-file-manager

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Improper Neutralization of Special Elements in Output Used by a Downstream Component

EUVDB-ID: #VU88882

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-28234

CWE-ID: CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to insufficient BBCode sanitization. A remote attacker can inject CSS styles.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Contao: 4.0 - 5.3.3

External links

http://github.com/contao/contao/security/advisories/GHSA-j55w-hjpj-825g
http://github.com/contao/contao/commit/55b995d8d35da0d36bc6a22c53fe6423ab0c4ae2
http://github.com/contao/contao/commit/6d42e667177c972ae7c219645593c262d7764ce2
http://contao.org/en/security-advisories/insufficient-bbcode-sanitization

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Security features bypass

EUVDB-ID: #VU88881

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-30262

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the remember-me tokens are not cleared after a password change. A remote user can gain access to sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Contao: 4.0 - 4.13.39

External links

http://github.com/contao/contao/security/advisories/GHSA-r4r6-j2j3-7pp5
http://github.com/contao/contao/commit/3032baa456f607169ffae82a8920354adb338fe9

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Information disclosure

EUVDB-ID: #VU88880

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-28191

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the insert tag injection via the form generator. A remote attacker can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Contao: 4.0 - 5.3.3

External links

http://github.com/contao/contao/security/advisories/GHSA-747v-52c4-8vj8
http://github.com/contao/contao/commit/388859dcf110ca70e0fae68a2a5579ab6a702919
http://github.com/contao/contao/commit/474a2fc25f1d84d786aba8c6d234af99e64d016b
http://contao.org/en/security-advisories/insert-tag-injection-via-the-form-generator

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Information disclosure

EUVDB-ID: #VU88879

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-28235

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to session cookie disclosure in the crawler. A remote user can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Contao: 4.9.0 - 5.3.3

External links

http://github.com/contao/contao/security/advisories/GHSA-9jh5-qf84-x6pr
http://github.com/contao/contao/commit/73a2770e2d3535ec9f1b03d54be00e56ebb8ff16
http://github.com/contao/contao/commit/79b7620d01ce8f46ce2b331455e0d95e5208de3d
http://contao.org/en/security-advisories/session-cookie-disclosure-in-the-crawler
http://github.com/contao/contao/blob/14e9ef4bc8b82936ba2d0e04164581145a075e2a/core-bundle/src/Resources/contao/classes/Crawl.php#L129

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.