Multiple vulnerabilities in PowerCMS



Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2025-29993
CVE-2021-21252
CWE-ID CWE-74
CWE-185
Exploitation vector Network
Public exploit N/A
Vulnerable software
 PowerCMS
Web applications / CMS

Vendor Alfasado Inc.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

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

EUVDB-ID: #VU106238

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-29993

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 the affected product improperly processes HTTP headers. A remote attacker can cause the target product to direct send email to a user, such as password reset mail, with a tampered URL.

Mitigation

Install update from vendor's website.

Vulnerable software versions

PowerCMS: 4.0 - 6.6

CPE2.3 External links

https://jvn.jp/en/jp/JVN39026557/index.html
https://www.powercms.jp/news/release-powercms-661-528-459.html


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.

2) Incorrect Regular Expression

EUVDB-ID: #VU64914

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-21252

CWE-ID: CWE-185 - Incorrect Regular Expression

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient input validation when processing regular expressions. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

PowerCMS: 4.0 - 6.6

CPE2.3 External links

https://jvn.jp/en/jp/JVN39026557/index.html
https://www.powercms.jp/news/release-powercms-661-528-459.html


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.



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