caddy/modules/caddyhttp/templates
JM Sanchez e2eee6a7fc
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templates: Patch for GHSA-vcc4-2c75-vc9v (#7785)
* Patch GHSA-vcc4-2c75-vc9v in stripHTML

templates: fix funcStripHTML bypass via depth counter

The previous false-start approach allowed XSS bypass via inputs like <<>img src=x onerror=alert(1)> and failed on stacked angle brackets.

Replace the tagStart/inTag state machine with a depth counter that mirrors PHP strip_tags behaviour: each '<' increments depth, each '>' decrements it, and text is only emitted at depth zero. Quoted attribute values (both single and double) are tracked so '>' inside href values does not prematurely close a tag.

Signed-off-by: JM Sanchez <77505889+jmrcsnchz@users.noreply.github.com>

* Update tplcontext_test.go

Templates: expand TestStripHTML with attack path coverage

Signed-off-by: JM Sanchez <77505889+jmrcsnchz@users.noreply.github.com>

---------

Signed-off-by: JM Sanchez <77505889+jmrcsnchz@users.noreply.github.com>
2026-06-01 13:35:02 -06:00
..
caddyfile.go caddyfile: Normalize & flatten all unmarshalers (#6037) 2024-01-23 19:36:59 -05:00
frontmatter.go chore: Use slices package where possible (#6585) 2024-09-25 14:30:56 -06:00
frontmatter_fuzz.go core: Windows service integration (#4790) 2022-07-29 14:06:54 -06:00
templates.go templates: Explicitly warn about misconfigurations 2026-05-11 16:45:49 -06:00
tplcontext.go templates: Patch for GHSA-vcc4-2c75-vc9v (#7785) 2026-06-01 13:35:02 -06:00
tplcontext_test.go templates: Patch for GHSA-vcc4-2c75-vc9v (#7785) 2026-06-01 13:35:02 -06:00