CVE-2024-32640

What it actually does

MASA CMS versions earlier than 7.4.5, 7.3.12, and 7.2.7 contain an unauthenticated, network-exploitable SQL injection flaw in the processAsyncObject method. An attacker can manipulate database queries issued by the CMS, potentially reading or modifying arbitrary database content, bypassing application controls, creating or altering privileged CMS records, and escalating to remote code execution where database or CMS functionality permits writing executable templates, invoking dangerous database procedures, or changing application-controlled code/configuration. The vulnerability has a critical CVSS score of 9.8, high EPSS probability, and is assessed as weaponized, meaning reliable exploitation patterns are expected to be available.

Why it matters to the business

Successful exploitation can result in full compromise of a public-facing content management system, including theft of stored content or user data, website defacement, unauthorized administrative access, malware placement, search-engine abuse, and service disruption. Because CMS platforms often sit on internet-facing infrastructure and have access to publishing workflows, databases, and credentials, compromise can also become a foothold for broader intrusion. Although it is not currently listed in CISA KEV and is not specifically tied to ransomware campaigns in the provided data, the high EPSS score, weaponized status, and long time since publication increase the likelihood that exposed unpatched systems will be scanned and attacked opportunistically.

How an attack unfolds

An attacker first identifies an internet-accessible MASA CMS instance and determines that it is running a vulnerable release. The attacker then sends crafted requests that reach the processAsyncObject code path and place SQL control syntax into fields that are incorporated into backend database queries without sufficient parameterization. Initial probes commonly test for SQL errors, timing differences, or boolean-based response changes. Once confirmed, the attacker can enumerate database structure, extract sensitive records, alter CMS data, or create privileged application state. To achieve remote code execution, the attacker may use database capabilities or CMS-controlled records to write or activate server-side code, modify templates, deploy a web shell, or trigger execution through the application runtime. Post-exploitation activity may include creating persistent CMS users, changing content or configuration, staging additional tools, and using the compromised web server for lateral movement or external command-and-control.

How to fix it

Upgrade MASA CMS immediately to a fixed release: 7.4.5, 7.3.12, 7.2.7, or later. For source-based deployments, ensure the code includes the fixed commit 11c02e748c5299f4b087fb9ce902e3cde4e13a92 or a later trusted upstream commit. Treat WAF rules and input filtering as temporary compensating controls only; the durable fix is applying the vendor patch. If immediate upgrade is not possible, restrict access to MASA CMS administrative and API surfaces, block suspicious requests targeting processAsyncObject, enforce least-privilege database permissions, disable dangerous database features not required by the application, prevent the application/database user from writing executable files to the webroot, and monitor aggressively until patched. After remediation, rotate CMS administrative credentials, database credentials, API keys, and any secrets accessible to the application if exploitation is suspected.

How to confirm the fix worked

Confirm the running MASA CMS version is 7.4.5, 7.3.12, 7.2.7, or newer, or verify that source deployments contain fixed commit 11c02e748c5299f4b087fb9ce902e3cde4e13a92 or later. Validate that all production, staging, disaster-recovery, and container images have been updated, not only the primary instance. Review the processAsyncObject implementation or vendor patch to ensure SQL queries use safe parameterization and no vulnerable code path remains. Run an authenticated and unauthenticated vulnerability scan using a safe, non-destructive check for this issue. Confirm web application firewall or reverse-proxy rules are not the only protection. After patching, review application logs for continued requests containing processAsyncObject and SQL injection syntax to ensure scanners or attackers are no longer reaching a vulnerable path.

Typical attack path

1. Discover internet-facing MASA CMS instances through scanning, search indexing, or fingerprinting.
2. Identify vulnerable versions earlier than 7.4.5, 7.3.12, or 7.2.7, or infer exposure by testing the vulnerable processAsyncObject behavior.
3. Send crafted requests to the processAsyncObject method containing SQL injection probes.
4. Confirm exploitability through database error messages, timing behavior, or content differences in responses.
5. Use SQL injection to enumerate database tables, extract sensitive data, or modify CMS records.
6. Escalate impact by creating or modifying administrative accounts, templates, plugins, configuration, or database objects.
7. Achieve code execution by causing the CMS or database layer to write or execute attacker-controlled server-side code where environment permissions allow.
8. Establish persistence, hide artifacts, and use the compromised CMS for data theft, defacement, malware hosting, or further intrusion.

How to detect it

Investigate potential prior exploitation using web server access logs, reverse-proxy logs, WAF events, MASA CMS application logs, ColdFusion/Lucee or Java application server logs, database audit/query logs, file integrity monitoring, endpoint telemetry, and authentication/admin activity logs. Look for requests that invoke processAsyncObject with SQL metacharacters, encoded SQL keywords, stacked-query separators, timing functions, or database-specific command execution/file-write functions. Correlate suspicious requests with database errors, unusual long-running queries, unexpected CMS administrator creation, template/plugin changes, configuration changes, or new executable files under CMS web directories. Review database logs for UNION-based enumeration, time-delay functions, schema discovery, attempts to write files, creation of procedures/functions, or changes to user/account tables. On the server, search for newly created or modified .cfm, .cfc, .jsp, .jspx, .war, or script files, especially in upload, assets, plugin, theme, or webroot paths. Also examine process telemetry for the application runtime spawning shells, scripting interpreters, network tools, or unexpected outbound connections shortly after suspicious web requests.

• processAsyncObject
• method=processAsyncObject
• processAsyncObject%
• processAsyncObject%28
• UNION SELECT
• UNION%20SELECT
• UNION+SELECT
• SLEEP(
• SLEEP%28
• BENCHMARK(
• BENCHMARK%28
• WAITFOR DELAY
• WAITFOR%20DELAY
• pg_sleep(
• pg_sleep%28
• xp_cmdshell
• INTO OUTFILE
• INTO%20OUTFILE
• LOAD_FILE(
• LOAD_FILE%28
• information_schema
• information_schema.tables
• OR 1=1
• OR%201%3D1
• AND 1=1
• AND%201%3D1
• '--
• %27--
• ';--
• %27%3B--
• cfexecute
• <cfexecute
• <cfscript
• Runtime.getRuntime().exec
• java.lang.ProcessBuilder
• .cfm
• .cfc
• .jsp
• .jspx
• /plugins/
• /modules/
• /themes/
• /assets/
• /uploads/

What your security team should do

• Prioritize patching all exposed MASA CMS instances because the vulnerability is critical, remotely exploitable without authentication, has high EPSS, and is weaponized.
• Inventory MASA CMS deployments across internet-facing, internal, staging, and containerized environments; verify versions rather than relying only on asset names.
• Upgrade to MASA CMS 7.4.5, 7.3.12, 7.2.7, or later, or confirm fixed commit 11c02e748c5299f4b087fb9ce902e3cde4e13a92 is present in source deployments.
• Before and after patching, search web, application, database, WAF, and runtime logs for processAsyncObject requests combined with SQL injection indicators.
• If any exploitation indicators are found, initiate incident response: preserve logs, snapshot affected systems, check for web shells, review CMS users and roles, rotate credentials, and inspect database changes.
• Limit database privileges used by the CMS so the application account cannot create procedures, write arbitrary files, or modify schema unless strictly required.
• Deploy temporary WAF or reverse-proxy rules to block suspicious processAsyncObject requests while patching is underway.
• Review CMS templates, plugins, uploaded files, scheduled tasks, and administrative accounts for unauthorized additions or modifications.