Issue: img not showing in template

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December 9, 2015 5:46 PM

Gossamer

Junior Member

img not showing in template

I have an infobox template setup on my wiki, including an image field. It's setup so that they just use [*img] bbcode to add an image to it. Images are showing up in the article correctly. But any image I try to pass into the template is not generating.

Code:

[template]Infobox
|Header = Huorn
|Subheader = Submitted by Piper
|Image = [IMG]https://i.imgur.com/zLGSxNx.png[/IMG]
|Field 1 = Fandom
|Info 1 = Tolkien Legendarium
|Field 2 = Location
|Info 2 = Mostly found in the forest surrounding Misty Hollow. Can rarely be found in the tropical forests in Horizon and Cascade Bay.
|Field 3 = Rarity
|Info 3 = ???
|Field 4 = Toxicity
|Info 4 = ???[/template]

Template Code

Code:

<div class="infobox"><div class="infobox_header">{{{Header|Header}}}</div><div class="infobox_image">{{{Image|}}}</div><div class="infobox_subheader">{{{Subheader|Subheader}}}</div><div class="infobox_body"><dl class="pairsJustified"><dt>{{{Field 1|Field 1}}}</dt><dd>{{{Info 1|}}}</dd></dl><dl class="pairsJustified"><dt>{{{Field 2|Field 2}}}</dt><dd>{{{Info 2|}}}</dd></dl><dl class="pairsJustified"><dt>{{{Field 3|Field 3}}}</dt><dd>{{{Info 3|}}}</dd></dl><dl class="pairsJustified"><dt>{{{Field 4|Field 4}}}</dt><dd>{{{Info 4|}}}</dd></dl><dl class="pairsJustified"><dt>{{{Field 5|Field 5}}}</dt><dd>{{{Info 5|}}}</dd></dl><dl class="pairsJustified"><dt>{{{Field 6|Field 6}}}</dt><dd>{{{Info 6|}}}</dd></dl></div></div>

Issue Details

Issue Number 4470

Issue Type Bug

Project VaultWiki 4.x Series

Category BB-Code Parsing

Status Fixed

Priority 3 - Loss of Functionality

Affected Version 4.0.7

Fixed Version 4.0.8

Milestone (none)

Software DependencyXenForo 1.x

License TypePaid

Users able to reproduce bug 0

Users unable to reproduce bug 0

Attachments 0

Assigned Users (none)

Tags (none)

December 10, 2015 10:45 AM

pegasus

VaultWiki Team

I have duplicated this behavior on our demo. It seems that this issue only affects the XenForo version. I will let you know when I have a solution.

Reply

December 10, 2015 1:27 PM

pegasus

VaultWiki Team

In vault/core/model/parser/sideways/template/xf.php, find:

Code:

$param['value'] = $this->prevent_stupid_xss($param, $text);

After it, add:

Code:

$param['value'] = $obfuscater->run($param['value'], 1, false, false);

In vault/core/model/parser/obfuscate/vw.php, find:

Code:

public function run($text, $undo = 0, $tags_only = false)

Replace with:

Code:

public function run($text, $undo = 0, $tags_only = false, $cleanup = true)

Find:

Code:

$text = str_replace('#!#CES-TST()DOL#L', '$', $text);

After it, add:

Code:

			if ($cleanup)
			{
				$this->cleanup();
			}

Find:

Code:

				$input = $this->frag_reverse($input);
				$this->store = array();

Replace with:

Code:

				$input = $this->frag_reverse($input);

December 10, 2015 1:46 PM

pegasus

VaultWiki Team

This occurred because:
1. Unparsed BB-Code exists in the output of the IMG tag (not sure why, but the alt attribute is always [/IMG]).
2. Unparsed BB-Codes are obfuscated from the template parser when discovering the boundaries between template arguments/parameters.
3. The values of template arguments must be the same before and after all templates are parsed to avoid a hash collision security vulnerability.
4. The reverse obfuscation of the template arguments is not the same as the obfuscated argument, so the values of those arguments are considered in violation of this security measure.

This only affected XenForo because this security measure is only needed in XenForo. This was fixed by ensuring that the security function compares the non-obfuscated versions of the argument on both sides of the comparison.

This bug was introduced by the following versions:
4.0.6 Patch Level 1
4.0.5 Patch Level 1
4.0.4 Patch Level 1
4.0.3 Patch Level 2
4.0.2 Patch Level 5
4.0.1 Patch Level 8
4.0.0 Patch Level 7
4.0.0 RC 5 Patch Level 6
4.0.0 RC 4 Patch Level 7

Reply
December 16, 2015 1:03 AM

Gossamer

Junior Member

I just tried doing the code edits, but I was unable to find the code you indicated in vault/core/model/parser/sideways/template/xf.php

Reply

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Issue: img not showing in template

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