Topic Title Maximum Length bypass using Inspect Element Tool

[davelr1]

Are you using either the latest version of bbPress, or the latest development version? If not, please update first.

• Both. The bug works with all versions including the 2.6-beta.

What steps should be taken to consistently reproduce the problem?

• Basically anyone can create a huge topic title by just using the browser inspect element tool to bypass the char limit.

Does the problem occur even when you deactivate all plugins and use the default theme?

• Yes.

In case it's relevant to the ticket, what is the expected output or result?

• Expect to truncate the titles.

What did you see instead?

• Virtually no char limit for topic titles.

Bug reported here:
​https://bbpress.org/forums/topic/topic-title-maximum-length-and-inspect-element-tool/

[johnjamesjacoby]

In 6784:

Titles: error if forum/topic/reply title is too long.

This change introduces bbp_is_title_too_long() and adds error messages to related forms if titles are too long.

Fixes #3189.

[johnjamesjacoby]

In 6881:

Titles: add comment about 8bit mode usage of mb_strlen() to provide extra context.

(After looking at this again, I wasn't confident it was correct. It seems to be, given how it's being used.)

See #3189.