CVE-2007-3205: The parse_str function in (1) PHP, (2) Hardened-PHP, and (3) Suhosin, when called without a second parameter, might allow remote attackers to overwrite arbitrary variables by specifying variable names and values in the string to be parsed. NOTE: it is not clear whether this is a design limitation of the function or a bug in PHP, although it is likely to be regarded as a bug in Hardened-PHP and Suhosin.

CSIRTS triage

What: The parse_str() function without a second parameter allows remote attackers to overwrite arbitrary variables via crafted input strings.
Who is affected: Applications using parse_str() without a destination variable parameter on affected PHP versions.
Urgency: Moderate; exploitation requires remote control of input to parse_str() and is context-dependent.
Action: Upgrade to a patched PHP version or ensure parse_str() is always called with an explicit second parameter.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch PHP

Get an email when a new PHP advisory drops — max one per day, one-click unsubscribe.

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Moderate exploitation riskCVE-2007-32052.1% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 80% of all EPSS-scored CVEs.

CVE	CSIRTS overview	External
CVE-2007-3205	coverage & exploitation status	NVD · CVE.org