{"answers":{"affected":"2 open source packages ship an affected version, including golang and stdlib. It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-24538 in the wild and no public exploit code.","fix":"Upgrade golang to a fixed version for your release line: 1.19.8 or 1.20.3.","what":"CVE-2023-24538 is a critical cross-site scripting vulnerability in Golang Go, published on 6 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-24538 and fix it if it is affected.\n\nWhat it is: CVE-2023-24538 is a critical cross-site scripting vulnerability in Golang Go, published on 6 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-24538 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- golang (Bitnami): affected all versions; fixed in 1.19.8, 1.20.3\n- stdlib (Go): affected all versions; fixed in 1.19.8, 1.20.3\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-24538/ (Markdown: https://insights.sbomify.com/CVE-2023-24538/index.md)","id":"CVE-2023-24538","markdown":"https://insights.sbomify.com/CVE-2023-24538/index.md","name":"CVE-2023-24538","record":{"aliases":["AZL-25992","AZL-25993","AZL-34751","AZL-37296","AZL-37411","AZL-78990","AZL-98649","BIT-golang-2023-24538","DEBIAN-CVE-2023-24538","GHSA-v4m2-x4rp-hv22","GO-2023-1703","MINI-75v2-j9gh-p429","OESA-2024-2551","OESA-2024-2552","OESA-2024-2582","UBUNTU-CVE-2023-24538"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Go html/template library","requires_auth":"none","summary":"Attackers can inject arbitrary JavaScript into Go templates by exploiting improper handling of backticks in JavaScript template literals.","user_interaction":"not_required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Go","cpe":[{"product":"go","vendor":"golang"}],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-94","name":"Improper Control of Generation of Code"}],"description":"Templates do not properly consider backticks (`) as Javascript string delimiters, and do not escape them as expected. Backticks are used, since ES6, for JS template literals. If a template contains a Go template action within a Javascript template literal, the contents of the action can be used to terminate the literal, injecting arbitrary Javascript code into the Go template. As ES6 template literals are rather complex, and themselves can do string interpolation, the decision was made to simply disallow Go template actions from being used inside of them (e.g. \"var a = {{.}}\"), since there is no obviously safe way to allow this behavior. This takes the same approach as github.com/google/safehtml. With fix, Template.Parse returns an Error when it encounters templates like this, with an ErrorCode of value 12. This ErrorCode is currently unexported, but will be exported in the release of Go 1.21. Users who rely on the previous behavior can re-enable it using the GODEBUG flag jstmpllitinterp=1, with the caveat that backticks will now be escaped. This should be used with caution.","ecosystems":["Bitnami","Go"],"exploits":{"exploitdb":0,"first_seen":"2023-09-29","github_poc":2,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2023-09-29T08:09:17Z","kind":"github_poc","ref":"https://github.com/skulkarni-mv/goIssue_dunfell","stars":0,"title":"go CVE-2023-24538 patch issue resolver - Dunfell"},{"date":"2023-09-29T17:18:42Z","kind":"github_poc","ref":"https://github.com/skulkarni-mv/goIssue_kirkstone","stars":0,"title":"go CVE-2023-24538 patch issue resolver - Kirkstone"}],"tier":"poc_unverified"},"has_fix":true,"headline":"Backticks not treated as string delimiters in html/template","id":"CVE-2023-24538","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"golang:go","products":["golang:go"],"type":"xss","year":"2023"},"n_packages":2,"n_references":5,"next":{"headline":"Improper sanitization of CSS values in html/template","id":"CVE-2023-24539"},"packages":[{"ecosystem":"Bitnami","fixed":["1.19.8","1.20.3"],"introduced":["0","1.20.0"],"last_affected":[],"package":"golang","purl":"pkg:bitnami/golang","source":"BIT-golang-2023-24538"},{"ecosystem":"Go","fixed":["1.19.8","1.20.3"],"introduced":["0","1.20.0-0"],"last_affected":[],"package":"stdlib","purl":"pkg:golang/stdlib","source":"GO-2023-1703"}],"prev":{"headline":"Infinite loop in parsing in go/scanner","id":"CVE-2023-24537"},"products":["html/template"],"published":"2023-04-06","related":[{"cvss_score":8.1,"headline":"Microsoft Windows CryptoAPI Spoofing","id":"CVE-2020-0601","kev_date_added":"2021-11-03","published":"2020-01-14"},{"cvss_score":9.8,"headline":"Missing bound checks can lead to memory corruption in safe Go in cmd/compile","id":"CVE-2026-27143","kev_date_added":null,"published":"2026-04-08"},{"cvss_score":9.8,"headline":"Unexpected behavior from Is methods for IPv4-mapped IPv6 addresses in net/netip","id":"CVE-2024-24790","kev_date_added":null,"published":"2024-06-05"},{"cvss_score":9.8,"headline":"Arbitrary code execution via go.mod toolchain directive in cmd/go","id":"CVE-2023-39320","kev_date_added":null,"published":"2023-09-08"},{"cvss_score":9.8,"headline":"Improper handling of JavaScript whitespace in html/template","id":"CVE-2023-24540","kev_date_added":null,"published":"2023-05-11"},{"cvss_score":9.8,"headline":"Other in go/golang","id":"CVE-2012-2666","kev_date_added":null,"published":"2021-07-09"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-02-13","vendors":["Go standard library"]},"summary":"Attackers can inject arbitrary JavaScript into Go templates by exploiting improper handling of backticks in JavaScript template literals.","url":"https://insights.sbomify.com/CVE-2023-24538/"}