--- title: HTB: Bookworm | daily.dev description: Bookworm is a vulnerable application that has a gnarly exploit chain involving multiple vulnerabilities such as cross-site scripting, insecure upload, and... canonical: https://daily.dev/posts/htb-bookworm-tgg0ymxbq twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: HTB: Bookworm | daily.dev og:description: Bookworm is a vulnerable application that has a gnarly exploit chain involving multiple vulnerabilities such as cross-site scripting, insecure upload, and... og:url: https://daily.dev/posts/htb-bookworm-tgg0ymxbq og:image: https://api.daily.dev/og/posts/TGG0YmXBq.png og:image:alt: HTB: Bookworm og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # HTB: Bookworm **[0xdf hacks stuff](https://daily.dev/sources/0xdf)** · 48 min read · 0 upvotes · 0 comments ## Summary Bookworm is a vulnerable application that has a gnarly exploit chain involving multiple vulnerabilities such as cross-site scripting, insecure upload, and insecure direct object reference. It allows for file download and traversal. It also has a dev webserver and vulnerable SQL injection. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Don’t just attend KubeCon \+ CloudNativeCon, Merge Forward your experience\!](https://daily.dev/posts/don-t-just-attend-kubecon-cloudnativecon-merge-forward-your-experience--l0rpp73x8) · CNCF · 1 upvotes · 0 comments - [Announcing H2 2026 KCDs](https://daily.dev/posts/announcing-h2-2026-kcds-m96goajm1) · CNCF · 1 upvotes · 0 comments - [Two months of Open Community Groups](https://daily.dev/posts/two-months-of-open-community-groups-asf52zhbs) · CNCF · 0 upvotes · 0 comments --- Tags: [#security](https://daily.dev/tags/security), [#javascript](https://daily.dev/tags/javascript), [#python](https://daily.dev/tags/python), [#cyber](https://daily.dev/tags/cyber), [#nodejs](https://daily.dev/tags/nodejs), [#ubuntu](https://daily.dev/tags/ubuntu), [#express](https://daily.dev/tags/express), [#flask](https://daily.dev/tags/flask), [#pentest](https://daily.dev/tags/pentest) [View this post on daily.dev](https://daily.dev/posts/htb-bookworm-tgg0ymxbq) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"HTB: Bookworm","url":"https://daily.dev/posts/htb-bookworm-tgg0ymxbq","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/htb-bookworm-tgg0ymxbq"},"datePublished":"2024-01-20T15:01:09.353Z","dateModified":"2024-05-09T08:29:02.242Z","description":"Bookworm is a vulnerable application that has a gnarly exploit chain involving multiple vulnerabilities such as cross-site scripting, insecure upload, and...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/fdcc9242265173dd92b61021c639f3dd?_a=AQAEufR","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/fdcc9242265173dd92b61021c639f3dd?_a=AQAEufR","isAccessibleForFree":true,"articleSection":"0xdf hacks stuff","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"0xdf hacks stuff","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/16cdada70d5f4fac8b588c53bcf005ff","url":"https://daily.dev/sources/0xdf"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/htb-bookworm-tgg0ymxbq","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"security,javascript,python,cyber,nodejs,ubuntu,express,flask,pentest","timeRequired":"PT48M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"0xdf hacks stuff","item":"https://daily.dev/sources/0xdf"},{"@type":"ListItem","position":3,"name":"HTB: Bookworm"}]} ```