Bug ID 530549: [Portal Access] Form action could have old value if it's modified after submitting form

Last Modified: Sep 13, 2023

Affected Product(s):
BIG-IP APM(all modules)

Known Affected Versions:
11.5.1, 11.5.2, 11.5.3, 11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.6.0, 11.6.1, 11.6.2, 11.6.3,,,,, 11.6.4, 11.6.5,,,

Fixed In:

Opened: Jun 30, 2015

Severity: 3-Major


Rewrite engine tries to revert form.action to unmangled url in submit event handler. If application code also applies modifications to form action shortly after it calls 'submit()', then these changes could be lost. The culprit is FormOnSubmit function, which does not check if it is reverting correct url.


Wep application not working as expected.


Modifications after submit can be lost.


iRule workaround specific to the backend application available upon request.

Fix Information

Form action will have the correct value if it's modified after submitting form.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips