Link manipulation (stored)
Summary: PortSwigger describes link manipulation as occurring when an application embeds user input into the path or domain of URLs that appear in its responses, letting an attacker construct a link that modifies the target of URLs within the response when another user visits it. The stored variant arises when that input was submitted in a previous request and saved by the application, and PortSwigger notes the impact depends largely on the application's functionality and may have no security impact on its own.
Why it matters: PortSwigger states the impact depends largely on application functionality and that in some situations the issue has no security impact at all, so a security leader has to judge each finding on its own rather than treat the label as a fixed severity. It also warns an attacker may chain it with other vulnerabilities to escalate overall severity, which means a low-impact finding can still matter in combination.
Read the original at PortSwigger Research ↗
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