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Merged
pull merged 3 commits into from
Jul 23, 2026
Merged

[pull] master from swisskyrepo:master #397

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d4cb655
Add Bypass using localhost TLD
HackingRepo Jul 23, 2026
12e5d82
Update localhost ping example in README
swisskyrepo Jul 23, 2026
434cc89
Merge pull request #857 from HackingRepo/patch-6
swisskyrepo Jul 23, 2026
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15 changes: 15 additions & 0 deletions Server Side Request Forgery/README.md
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Expand Up @@ -19,6 +19,7 @@
* [Bypass Abusing URL Parsing Discrepancy](#bypass-abusing-url-parsing-discrepancy)
* [Bypass PHP filter_var() Function](#bypass-php-filter_var-function)
* [Bypass Using JAR Scheme](#bypass-using-jar-scheme)
* [Bypass Using TLD localhost](#bypass-using-tld-localhost)
* [Exploitation via URL Scheme](#exploitation-via-url-scheme)
* [file://](#file)
* [http://](#http)
Expand Down Expand Up @@ -292,6 +293,20 @@ In PHP 7.0.25, `filter_var()` function with the parameter `FILTER_VALIDATE_URL`
?>
```

### Bypass Using TLD localhost

There was a reserved tld called `.localhost`, it can accept arbiratry domains and resolves to the localhost ip, here is an example

```powershell
$ ping PayloadsAllTheThings.localhost -c 1
PING PayloadsAllTheThings.localhost (::1) 56 data bytes
64 bytes from ip6-localhost (::1): icmp_seq=1 ttl=64 time=0.070 ms

--- PayloadsAllTheThings.localhost ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.070/0.070/0.070/0.000 ms
```

### Bypass Using JAR Scheme

This attack technique is fully blind, you won't see the result.
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