CVE intelligence and bounded remediation
CVE-2023-3235 — A vulnerability was found in mccms up to 2.6.5
A vulnerability was found in mccms up to 2.6.5. It has been rated as critical. Affected by this issue is the function pic_api of the file sys/apps/controllers/admin/Comic.php. The manipulation of the argument url leads to server-side request forgery. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-231506 is the identifier assigned to this vulnerability.
- Severity
- High
- CVSS
- 8.8 (3.1)
- Published
- 2023-06-14
- CISA KEV
- Not currently listed
- Ecosystem
- software/application
- Weaknesses
- CWE-918
Affected products
- chshcms / mccms
Matched remediation archetype
Server-side request forgery and unintended proxying
This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.
Check exposure
- Inventory server-side URL fetchers, webhooks, importers, previews, redirects, proxies, and protocol handlers reachable from untrusted input.
- Map egress paths to internal services, metadata endpoints, loopback, private address space, and privileged control planes.
- Review DNS resolution, redirect, proxy, credential-forwarding, and URL parsing behavior without requesting sensitive targets.
Remediate safely
- Replace arbitrary destinations with named integrations or a strict allowlist of schemes, hosts, ports, and paths.
- Resolve and validate every destination and redirect hop, then enforce egress policy independently of application checks.
- Remove ambient credentials and sensitive headers from fetchers; apply response size, time, and content limits.
Authoritative sources
Complete CVE record and remediation plan
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