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Adobe released security updates for Adobe ColdFusion to fix CVE-2024-53961, a critical vulnerability that allows a remote unauthenticated attacker to read arbitrary files from affected servers. The flaw impacts ColdFusion 2023 versions earlier than Update 12 and ColdFusion 2021 versions earlier than Update 18, creating a path for attackers to access sensitive information stored on vulnerable systems.
Security advisories warned that the exposed data could be used to support follow-on attacks and potentially lead to broader system compromise. A public proof-of-concept exploit is already available, raising the risk of exploitation attempts against unpatched internet-facing servers. Adobe advised organizations to upgrade immediately to ColdFusion 2023 Update 12 or ColdFusion 2021 Update 18 and to apply the vendor’s recommended configuration guidance.
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2 events from the most recent confirmed update back to the earliest known activity.
CSIRT.SK reported that a proof-of-concept exploit for CVE-2024-53961 was already publicly available, increasing the likelihood of exploitation attempts against vulnerable Adobe ColdFusion servers. The notice also highlighted the risk of arbitrary file reads exposing sensitive data for follow-on attacks.
Adobe released security updates to fix CVE-2024-53961, a critical arbitrary file-read vulnerability affecting ColdFusion 2023 before Update 12 and ColdFusion 2021 before Update 18. Adobe advised customers to upgrade to ColdFusion 2023 Update 12 or ColdFusion 2021 Update 18 and follow the vendor's configuration guidance.
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Adobe disclosed two high-severity vulnerabilities in **ColdFusion** that affect versions **2023.18, 2025.6, and earlier**. The first, `CVE-2026-27304`, is an improper input validation flaw (`CWE-20`) that can lead to **arbitrary code execution** in the context of the current user without requiring user interaction. Adobe assigned the issue a CVSS v3.1 vector of `AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N` and published details in security bulletin **APSB26-38**. Adobe also disclosed `CVE-2026-27305`, a **path traversal** vulnerability (`CWE-22`) in the same ColdFusion versions that allows an unauthenticated remote attacker to perform **arbitrary file system reads** and access sensitive files outside intended directories. The flaw likewise requires no user interaction and carries a CVSS v3.1 vector of `AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N`, making the pair of issues a significant risk for exposed ColdFusion deployments.
Jun 30, 2026
Adobe ColdFusion is facing active exploitation of **CVE-2026-48282**, a maximum-severity flaw tied to **RDS arbitrary file write** that can be abused without privileges on unpatched servers. The Canadian Centre for Cyber Security warned that open-source reporting indicates in-the-wild attacks, while Adobe has issued security updates and urged administrators to patch immediately because of the high risk of compromise. Affected releases include **ColdFusion 2025.9, 2023.20, and earlier**, and internet scanning data from Shadowserver shows nearly **800** ColdFusion instances exposed online, though the number still vulnerable is unclear. Separate reporting on **CVE-2026-48276** highlights a closely related ColdFusion attack path in which an unauthenticated attacker uploads a malicious **CFML** payload through an unrestricted file-upload weakness, writes a web shell into a web-accessible location, and then triggers it with an HTTP request to gain code execution. That issue was described as critical with a **CVSS v3.1** score reflecting full impact to confidentiality, integrity, and availability, and its documented root causes included poor filename and extension validation and storing uploads under the web root. Public detection content has also appeared for **CVE-2026-48282**, underscoring defender focus on identifying exposed and unpatched ColdFusion systems.
Jul 12, 2026
Adobe has released security updates addressing several critical and high-severity vulnerabilities in ColdFusion versions 2025.4, 2023.16, 2021.22, and earlier. The vulnerabilities include improper input validation, improper access control, unrestricted upload of files with dangerous types, deserialization of untrusted data, and improper restriction of XML external entity references. These flaws could allow attackers to bypass security features, gain unauthorized read and write access, execute arbitrary code, escalate privileges, and read sensitive files from the server. Most of these vulnerabilities can be exploited remotely and do not require user interaction, with some specifically requiring high-privileged access. Adobe's security bulletin (APSB25-105) confirms that there are currently no known exploits in the wild for these issues. The company strongly recommends users update to the latest versions—ColdFusion 2025 Update 5, 2023 Update 17, and 2021 Update 23—to mitigate the risks. Additional guidance includes using the latest MySQL Java connector and reviewing updated serial filter documentation to protect against insecure deserialization attacks. Organizations using affected ColdFusion versions should prioritize patching to prevent potential exploitation of these vulnerabilities.
Jun 29, 2026