CVE-2025-34337
HighCVSS 8.7Exploitation Probability (EPSS)
Low risk17th percentile - higher than 17% of all known CVEs
Summary
The vulnerability in eGovFramework/egovframe-common-components up to version 4.3.1 involves the Web Editor image upload functionality that uses symmetric encryption to protect URL parameters but exposes an encryption oracle. This allows an attacker to generate valid ciphertext for chosen values, bypassing access controls and retrieving arbitrary stored files.
Risk Assessment
The organization is at risk of unauthorized access to sensitive files stored on the server that should be protected by session or authorization context. An attacker can exploit this vulnerability to steal data without authentication.
Recommendation
Immediately apply the available patch or temporarily disable the Web Editor image upload functionality. If no patch is available, implement additional authentication and authorization mechanisms for file upload and download endpoints.
Related vulnerabilities
- CVE-2025-12999Critical
A vulnerability in Open VSX allows an unauthenticated attacker to poison the per-extension metadata cache by supplying a crafted X-Forwarded-Host header, replacing download, signature, and public-key URLs with attacker-controlled ones. The cache keys do not include the host, so poisoned entries are served to all clients for the entry's lifetime (1 hour by default, cluster-wide with Redis).
- CVE-2026-82187Critical
The Web to Print Online Designer WordPress plugin before 2.15.0 does not validate the type or extension of uploaded files, and hands the token protecting those uploads to any visitor who asks for it. This allows unauthenticated attackers to upload arbitrary files, including PHP ones, and run code on the server.
- CVE-2026-94101Critical
A security vulnerability has been detected in Netcore NBR200V2 1.3.241127.071246. The affected function is vlan_load_form_uci in /usr/bin/routerd, where manipulation of the wan_num argument leads to buffer overflow. The attack can be initiated remotely and the exploit is publicly disclosed.
- CVE-2026-94100Critical
A weakness has been identified in Netcore NBR200V2 1.3.241127.071246. The affected function is wan_config_set_vlan in /usr/bin/routerd, where manipulation of the vlan_wanX.ports argument leads to buffer overflow. The attack can be performed remotely and the exploit is publicly available.
- CVE-2026-94099Critical
A security flaw has been discovered in Netcore NBR200V2 1.3.241127.071246. The issue affects the restore.cgi file in the Backup Restore component, where manipulation of the QUERY_STRING argument results in command injection. The attack can be carried out remotely and the exploit is publicly released.
- CVE-2026-94098Critical
A vulnerability was identified in Netcore NBR200V2 1.3.241127.071246. The vulnerability affects the /www/cgi-bin/upgrade file in the Firmware Upgrade CGI Endpoint component, where manipulation of the QUERY_STRING argument leads to command injection. The attack can be executed remotely and the exploit is publicly available.
- CVE-2026-94097Critical
A vulnerability was determined in Netcore NBR200V2 1.3.241127.071246. The vulnerability affects the /www/cgi-bin/network_tools file in the CGI Diagnostic Endpoint component, where manipulation of the param/key/val arguments causes command injection. Remote exploitation is possible and the exploit has been publicly disclosed.
- CVE-2026-94096Critical
A vulnerability was found in Netcore NBR200V2 1.3.241127.071246. The vulnerability affects the /usr/bin/network_tools file in the LAN IP Configuration Handler component, where manipulation of the ipv4 argument results in command injection. The attack may be launched remotely and the exploit has been made public.
- CVE-2026-94095Critical
A vulnerability has been found in Netcore NBR200V2 1.3.241127.071246. The vulnerability affects the /usr/bin/network_tools file in the Traceroute Diagnostic Feature component, where manipulation of the url argument leads to command injection. The attack may be initiated remotely and the exploit has been disclosed publicly.
- CVE-2026-94089Critical
A vulnerability was found in D-Link DIR-868L 2.01b05 in the strcpy function of the file /webfa_authentication.cgi in the Authentication Handler component. Manipulating the id/password arguments leads to a stack-based buffer overflow. The attack can be executed remotely, and the exploit has been publicly disclosed.
Original NVD description (English source)
eGovFramework/egovframe-common-components versions up to and including 4.3.1 includes Web Editor image upload and related file delivery functionality that uses symmetric encryption to protect URL parameters, but exposes an encryption oracle that allows attackers to generate valid ciphertext for chosen values. The image upload endpoints /utl/wed/insertImage.do and /utl/wed/insertImageCk.do encrypt server-side paths, filenames, and MIME types and embed them directly into a download URL that is returned to the client. Because these same encrypted parameters are trusted by other endpoints, such as /utl/web/imageSrc.do and /cmm/fms/getImage.do, an unauthenticated attacker can abuse the upload functionality to obtain encrypted representations of attacker-chosen identifiers and then replay those ciphertext values to file-serving APIs. This design failure allows an attacker to bypass access controls that rely solely on the secrecy of encrypted parameters and retrieve arbitrary stored files that are otherwise expected to require an existing session or specific authorization context. KISA/KrCERT has identified this unpatched vulnerability as "KVE-2023-5281."