tryhackme-ctf-writeups

TryHackMe Write-Ups Thirteen rooms, solved and then explain...

PT-2026-82679

Name of the Vulnerable Software and Affected Versions Trilium versions prior to 0.104.0 Description The Safe import filter fails to neutralize the shareTemplate relation because it is not marked as dangerous. This allows an attacker to provide a malicious import archive that plants a server-side...

PT-2026-82654

Name of the Vulnerable Software and Affected Versions Tutor LMS versions prior to 4.0.6 Description The Tutor LMS WordPress plugin contains a template injection issue caused by insufficient validation of request data. This allows unauthenticated users to overwrite internal variables during templa...

CVE-2026-81658: Authorization Bypass Through User-Controlled Key

A flaw was found in Foreman. The template revision endpoint does not enforce object-level authorization when retrieving an audited template revision. An authenticated, low privileged user with a template-related permission, such as viewptables, can obtain historical template contents belonging to...

CVE-2026-54718: Improper Neutralization of Special Elements Used in a Template Engine

Silverstripe Advanced Workflow is a highly configurable step-based workflow module. Prior to 6.4.5, 7.1.3, and 7.2.1, an attacker with permission to author the advanced workflow email template can place a specially crafted server-side template payload in NotifyUsersWorkflowAction.EmailTemplate...

PT-2026-82545

Name of the Vulnerable Software and Affected Versions Spring Framework versions 7.0.0 through 7.0.8 Spring Framework versions 6.2.0 through 6.2.19 Spring Framework versions 6.1.0 through 6.1.28 Spring Framework versions 6.0.0 through 6.0.30 Spring Framework versions 5.3.0 through 5.3.49 Spring...

AlmaLinux 8 : go-toolset:rhel8 (ALSA-2026:60305)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:60305 advisory. encoding/asn1: golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal CVE-2026-33818 net/url: golang: golang net/url: Denial of...

CVE-2026-37004

BerriAI litellm =1.82.4 is vulnerable to Server-Side Template Injection SSTI, which allows unauthenticated remote attackers to execute arbitrary OS commands via a crafted dotpromptcontent parameter in the /prompts/test endpoint due to use of an unsandboxed jinja2.Environment...

PT-2026-82686

Silverstripe Advanced Workflow is a highly configurable step-based workflow module. Prior to 6.4.5, 7.1.3, and 7.2.1, an attacker with permission to author the advanced workflow email template can place a specially crafted server-side template payload in NotifyUsersWorkflowAction.EmailTemplate...

CVE-2026-37004

BerriAI litellm =1.82.4 is vulnerable to Server-Side Template Injection SSTI, which allows unauthenticated remote attackers to execute arbitrary OS commands via a crafted dotpromptcontent parameter in the /prompts/test endpoint due to use of an unsandboxed jinja2.Environment...

CVE-2026-19092: Improper Neutralization of Special Elements in Output Used by a Downstream Component

The Tutor LMS WordPress plugin before 4.0.6 does not prevent request data from overwriting internal variables while rendering templates, allowing unauthenticated users to invoke arbitrary zero-argument PHP functions and receive their output...

PT-2026-82500

Name of the Vulnerable Software and Affected Versions Flowintel versions 3.3.0 and later Description Flowintel allows the LOG FILE configuration value to be modified via system settings without restricting it to the intended log directory. This allows an administrator to set LOG FILE to an...

PT-2026-82490

A flaw was found in Foreman. The template revision endpoint does not enforce object-level authorization when retrieving an audited template revision. An authenticated, low privileged user with a template-related permission, such as view ptables, can obtain historical template contents belonging t...

CVE-2026-37004

BerriAI litellm versions

PT-2026-82662

Name of the Vulnerable Software and Affected Versions litellm versions prior to 1.82.5 Description An issue exists where unauthenticated remote attackers can execute arbitrary OS commands. This occurs due to the use of an unsandboxed jinja2.Environment, which enables Server-Side Template Injectio...

VulnCheck KEV: CVE-2026-61511

vBulletin 5.x through 5.7.5 and 6.x through 6.2.1 contains an eval injection vulnerability in the vB5TemplateRuntime::runMaths method within the template runtime that allows unauthenticated remote attackers to execute arbitrary PHP code by supplying crafted input through the pagenavpagenumber...

AlmaLinux 9 : golang (ALSA-2026:60304)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:60304 advisory. encoding/asn1: golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal CVE-2026-33818 net/url: golang: golang net/url: Denial of...

CVE-2026-32639 Winter: Broken access control in `Cms\Controllers\Index` allows cross-template actions and unauthorized asset uploads

Winter CMS is a content management system built on the Laravel PHP framework. In versions up to and including 1.2.12, the CMS section's Theme Editor AJAX handlers did not enforce per-template-type permission checks, allowing a backend user with any single CMS permission to act on template types...

CVE-2026-32639 Winter: Broken access control in `Cms\Controllers\Index` allows cross-template actions and unauthorized asset uploads

Winter CMS is a content management system built on the Laravel PHP framework. In versions up to and including 1.2.12, the CMS section's Theme Editor AJAX handlers did not enforce per-template-type permission checks, allowing a backend user with any single CMS permission to act on template types...

CVE-2026-32639

Winter CMS (a content management system built on Laravel) contained a broken access control flaw in its CMS Theme Editor AJAX handlers (Cms\Controllers\Index). The controller used OR-logic across five permissions to gate section access, but individual handlers like onSave(), onDelete(), and onDel...