Vulnerabilidades

LeptonCMS version 7.3.0 contains an arbitrary file upload vulnerability, which is caused by the lack of proper validation for uploaded files. An authenticated attacker can exploit this vulnerability by uploading a specially crafted ZIP/PHP file to execute arbitrary code.

File Upload vulnerability in lepton v.7.1.0 allows a remote authenticated attackers to execute arbitrary code via uploading a crafted PHP file.

File Upload vulnerability in lepton v.7.1.0 allows a remote authenticated attackers to execute arbitrary code via uploading a crafted PHP file to the save.php and config.php component.

An issue in Lepton CMS v.7.0.0 allows a local attacker to execute arbitrary code via the upgrade.php file in the languages place.

An arbitrary file upload vulnerability in LEPTON v7.0.0 allows authenticated attackers to execute arbitrary PHP code by uploading this code to the backend/languages/index.php languages area.

Cross Site Scripting (XSS) vulnerability in backend/pages/modify.php in Lepton-CMS version 4.7.0, allows remote attackers to execute arbitrary code.

A loop with an unreachable exit condition can be triggered by passing a crafted JPEG file to the Lepton image compression tool, resulting in a denial-of-service.

An issue in the Leptonica linked library (v1.79.0) allows attackers to cause an arithmetic exception leading to a Denial of Service (DoS) via a crafted JPEG file.

Dropbox Lepton v1.2.1-185-g2a08b77 was discovered to contain a heap-buffer-overflow in the function aligned_dealloc():src/lepton/bitops.cc:108.

Leptonica before 1.80.0 allows a heap-based buffer over-read in pixFewColorsOctcubeQuantMixed in colorquant1.c.

Leptonica before 1.80.0 allows a heap-based buffer over-read in pixReadFromTiffStream, related to tiffio.c.

Leptonica before 1.80.0 allows a heap-based buffer over-read in rasteropGeneralLow, related to adaptmap_reg.c and adaptmap.c.

Leptonica before 1.80.0 allows a heap-based buffer over-read in findNextBorderPixel in ccbord.c.

Leptonica before 1.80.0 allows a denial of service (application crash) via an incorrect left shift in pixConvert2To8 in pixconv.c.

Lepton-CMS 4.7.0 is affected by cross-site scripting (XSS). An attacker can inject the XSS payload in the URL field of the admin page and each time an admin visits the Menu-Pages-Pages Overview section, the XSS will be triggered.

An XSS vulnerability exists in modules/wysiwyg/save.php of LeptonCMS 4.5.0. This can be exploited because the only security measure used against XSS is the stripping of SCRIPT elements. A malicious actor can use HTML event handlers to run JavaScript instead of using SCRIPT elements.

Multiple cross-site scripting (XSS) vulnerabilities exist in LeptonCMS before 4.6.0.

read_ujpg in jpgcoder.cc in Dropbox Lepton 1.2.1 allows attackers to cause a denial-of-service (application runtime crash because of an integer overflow) via a crafted file.

io/ZlibCompression.cc in the decompression component in Dropbox Lepton 1.2.1 allows attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact by crafting a jpg image file. The root cause is a missing check of header payloads that may be…

An issue was discovered in Dropbox Lepton 1.2.1. The validateAndCompress function in validation.cc allows remote attackers to cause a denial of service (SIGFPE and application crash) via a malformed file.

An exploitable command injection vulnerability exists in the gplotMakeOutput function of Leptonica 1.74.4. A specially crafted gplot rootname argument can cause a command injection resulting in arbitrary code execution. An attacker can provide a malicious path as input to an application that passes attacker data to…

An issue was discovered in Leptonica through 1.75.3. The gplotMakeOutput function does not block '/' characters in the gplot rootname argument, potentially leading to path traversal and arbitrary file overwrite.

Leptonica through 1.75.3 uses hardcoded /tmp pathnames, which might allow local users to overwrite arbitrary files or have unspecified other impact by creating files in advance or winning a race condition, as demonstrated by /tmp/junk_split_image.ps in prog/splitimage2pdf.c.

An issue was discovered in Leptonica through 1.75.3. The gplotMakeOutput function allows command injection via a $(command) approach in the gplot rootname argument. This issue exists because of an incomplete fix for CVE-2018-3836.

Leptonica 1.74.4 constructs unintended pathnames (containing duplicated path components) when operating on files in /tmp subdirectories, which might allow local users to bypass intended file restrictions by leveraging access to a directory located deeper within the /tmp directory tree, as demonstrated by…