CVE-2019-25765 in Asp-Cms
Summary
by MITRE • 08/13/2026
ASP-CMS contains a SQL injection vulnerability in the commentList.asp endpoint that allows unauthenticated remote attackers to inject arbitrary SQL by manipulating the id parameter in GET requests to the comment listing script. Attackers can bypass the application's keyword blocklist by interleaving the string 'master' within blocked SQL terms to extract sensitive database contents. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-18 (UTC).
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Analysis
by VulDB Data Team • 08/13/2026
This vulnerability represents a critical sql injection flaw in asp-cms that exposes the commentlist.asp endpoint to unauthenticated remote exploitation through manipulated get parameters. The weakness specifically manifests when attackers manipulate the id parameter in http requests targeting the comment listing script, creating a direct pathway for malicious sql command execution without requiring authentication credentials. The vulnerability operates through a sophisticated bypass mechanism where attackers can circumvent the application's built-in keyword filtering by strategically interleaving the string 'master' within blocked sql terms, effectively evading detection and allowing complete database content extraction.
The technical implementation of this vulnerability aligns with common sql injection attack patterns classified under cwe-89 and follows established attack methodologies documented in the mitre att&ck framework under technique t1190 for sql injection. The specific bypass technique using interleaved keywords demonstrates advanced evasion capabilities that make this vulnerability particularly dangerous as it can effectively neutralize basic input validation measures. This approach allows attackers to extract sensitive database contents including user credentials, personal information, and application configuration data without proper authorization.
The operational impact of this vulnerability extends beyond simple data exfiltration to encompass complete system compromise potential. Successful exploitation enables attackers to manipulate database contents, escalate privileges, and potentially establish persistent access points within affected systems. The lack of authentication requirements means that any internet-facing asp-cms installation becomes immediately vulnerable to exploitation, creating widespread risk across organizations utilizing this content management system. The vulnerability's exposure through the commentlist.asp endpoint suggests that even seemingly benign user interaction points can serve as attack vectors for sophisticated sql injection attacks.
Security mitigation strategies must address both immediate remediation and long-term architectural improvements to prevent similar vulnerabilities from emerging in future applications. Organizations should implement comprehensive input validation mechanisms including parameterized queries, proper escape sequence handling, and robust sql injection detection systems that go beyond simple keyword filtering. The use of web application firewalls and intrusion prevention systems can provide additional layers of protection while implementing proper code review processes that identify and eliminate sql injection vulnerabilities during development phases. Regular security assessments and vulnerability scanning should be conducted to identify similar weaknesses in other application components, as this attack pattern demonstrates how attackers can adapt simple bypass techniques to overcome basic security controls.
The timeline of exploitation evidence first observed by shadowserver foundation on 2023-10-18 indicates that this vulnerability has been actively exploited in the wild, emphasizing the urgent need for immediate remediation efforts. This timeframe suggests that organizations should treat this as an imminent threat requiring immediate attention rather than a potential future risk. The vulnerability's presence in widely deployed content management systems means that coordinated efforts across affected organizations are necessary to prevent widespread exploitation and data breaches.
Additional technical considerations include the importance of implementing proper error handling mechanisms to prevent information leakage during sql injection attempts, as well as establishing comprehensive monitoring systems that can detect unusual database access patterns indicative of exploitation attempts. The vulnerability also highlights the critical need for regular security updates and patches, as many organizations may not have applied recent security fixes that could address similar sql injection weaknesses in their software components.