Appsmith

Server-side request forgery and internal network enumeration in Appsmith (prior to 1.99) is enabled by the POST /api/v1/admin/send-test-email endpoint accepting attacker-controlled smtpHost and smtpPort values, which JavaMail uses to establish raw TCP connections without IP address validation - completely bypassing the application's existing WebClientUtils.IP_CHECK_FILTER. Verbatim MailException error messages are returned in API responses, enabling authenticated administrators (or attackers who have compromised admin credentials) to probe internal network topology, enumerate open ports, and harvest service banners. No public exploit identified at time of analysis; the vulnerability is fixed in version 1.99.

Reverse-proxy takeover in Appsmith versions prior to 2.1 lets an authenticated low-privileged user abuse server-side request forgery to reach the bundled Caddy admin API, which ships with no authentication and listens on 0.0.0.0:2019 inside the container. By forcing the Appsmith server to issue a POST /load to that internal endpoint, the attacker rewrites the live Caddy configuration and seizes control of the reverse proxy that fronts the application. No public exploit identified at time of analysis and the issue is not in CISA KEV, but the vendor-confirmed CWE-749 exposure carries a 9.9 CVSS rating.

Server-side request forgery in Appsmith prior to version 2.1 allows authenticated users to reach loopback-bound services inside the deployment container by exploiting a split code path in host validation logic. The WebClientUtils component used by REST API and GraphQL datasource plugins enforces only an exact-match string denylist, while the comprehensive address-class check covering loopback, any-local, link-local, and fc00::/7 IPv6 ranges exists solely on the SMTP plugin code path - leaving the HTTP path bypassable. No public exploit code has been identified at time of analysis, and this CVE does not appear in the CISA KEV catalog.

Authenticated command execution in Appsmith versions prior to 2.1 lets any administrator run arbitrary OS commands inside the application's Docker container. The bundled supervisord exposes an XML-RPC management interface on port 9001, which Appsmith's Caddy reverse proxy publishes externally at /supervisor/* on the public ingress; combined with the supervisord password being readable through GET /api/v1/admin/env, an admin can authenticate to supervisord and abuse twiddler.addProgramToGroup to spawn programs that execute shell commands. There is no public exploit identified at time of analysis, and it is not listed in CISA KEV. Fixed in 2.1.

Stored XSS in Appsmith's SQL query editor autocomplete allows an authenticated Developer-role user to inject persistent malicious JavaScript via crafted database table or column names that are rendered unsanitized through innerHTML. When other workspace members interact with the same datasource's query editor, the injected script executes in their browser session, enabling session token theft and unauthorized actions with high confidentiality impact (CVSS C:H). A public proof-of-concept exploit exists (Stuub/Appsmith-1.98-Stored-XSS-Exploit on GitHub), and the vulnerability was reported by CERT/CC, materially elevating practical exploitation risk above what the CVSS 6.3 Medium score alone implies.

Server-side request forgery (SSRF) in Appsmith Dashboard component allows unauthenticated remote attackers to manipulate the computeDisallowedHosts function in WebClientUtils.java, enabling unauthorized server-side requests. Affecting all versions through 1.97, this vulnerability carries moderate real-world risk (CVSS 6.9, EPSS P) with publicly available exploit code. Vendor released patched version 1.99 and responded professionally to early disclosure.

Appsmith versions prior to 1.98 allow unauthenticated remote attackers to access sensitive instance management API endpoints (/api/v1/consolidated-api/view, /api/v1/tenants/current) without authentication, enabling disclosure of configuration metadata, license information, and unsalted SHA-256 hashes of admin email domains. This authentication bypass facilitates reconnaissance for targeted follow-up attacks against Appsmith deployments and their administrators. No public exploit code or active exploitation has been independently confirmed at time of analysis.

Appsmith platform prior to version 1.96 has a critical stored XSS enabling account takeover through crafted admin panel content.

Appsmith platform version 1.94 and below has a missing authorization vulnerability that allows unauthenticated access to publicly deployed applications' internal APIs.

Appsmith before 1.93 allows attackers to control the Origin header value used as the base URL in password reset and email verification links. Attackers can redirect authentication tokens to their domain, enabling account takeover. PoC available, patch available.

An issue was discovered in Appsmith before 1.51. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

An issue was discovered in Appsmith before 1.52. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Epss exploitation probability 67.3% and no vendor patch available.

An issue was discovered in Appsmith before 1.51. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 25.2%.

Appsmith is a platform to build admin panels, internal tools, and dashboards. Rated medium severity (CVSS 4.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

AppSmith Community 1.8.3 before 1.46 allows SSRF via New DataSource for application/json requests to 169.254.169.254 to retrieve AWS metadata credentials. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Server-Side Request Forgery (SSRF) in GitHub repository appsmithorg/appsmith prior to 1.8.2. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

An issue in the Elasticsearch plugin of Appsmith v1.7.11 allows attackers to connect disallowed hosts to the AWS/GCP internal metadata endpoint. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity.

Appsmith v1.7.11 was discovered to allow attackers to execute an authenticated Server-Side Request Forgery (SSRF) via redirecting incoming requests to the AWS internal metadata endpoint. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity.

Server-side JavaScript injection in Appsmith through 1.7.14 allows remote attackers to execute arbitrary JavaScript code from the server via the currentItem property of the list widget, e.g., to. Rated high severity (CVSS 8.9), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.