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CVE-2021-3645

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

merge is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

Vendor	Product	Versions
viking04	viking04/merge	>= unspecified, < 1.0.2

References

https://github.com/viking04/merge/commit/baba40332080b38b33840d2614df6d4142dedaf6Patch, Third Party Advisory
https://huntr.dev/bounties/ef387a9e-ca3c-4c21-80e3-d34a6a896262Exploit, Third Party Advisory
https://github.com/viking04/merge/commit/baba40332080b38b33840d2614df6d4142dedaf6Patch, Third Party Advisory
https://huntr.dev/bounties/ef387a9e-ca3c-4c21-80e3-d34a6a896262Exploit, Third Party Advisory

Timeline

Published: Sep 10, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

CVE-2021-364506.1Verint Workforce Optimization (WFO) 15.2.8.10048 allows XSS via the control/my_notifications NEWUINAV parameter.CVE-2021-364545.4Cross Site Scripting (XSS) vulnerability in Naviwebs Navigate Cms 2.9 via the navigate-quickse parameter to 1) backups\backups.php, 2) block CVE-2021-364558.8SQL Injection vulnerability in Naviwebs Navigate CMS 2.9 via the quicksearch parameter in \lib\packages\comments\comments.php.CVE-2021-36466.1btcpayserver is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2021-364607.8VeryFitPro (com.veryfit2hr.second) 3.2.8 hashes the account's password locally on the device and uses the hash to authenticate in all commun CVE-2021-364618.8An Arbitrary File Upload vulnerability exists in Microweber 1.1.3 that allows attackers to getshell via the Settings Upload Picture section CVE-2021-36476.1URI.js is vulnerable to URL Redirection to Untrusted Site CVE-2021-364719.8Directory Traversal vulnerability in AdminLTE 3.1.0 allows remote attackers to gain escalated privilege and view sensitive information via /CVE-2021-364838.8DevExpress.XtraReports.UI through v21.1 allows attackers to execute arbitrary code via insecure deserialization.CVE-2021-364849.8SQL injection vulnerability in JIZHICMS 1.9.5 allows attackers to run arbitrary SQL commands via add or edit article page.CVE-2021-364896.5Buffer Overflow vulnerability in Allegro through 5.2.6 allows attackers to cause a denial of service via crafted PCX/TGA/BMP files to allegr CVE-2021-36497.5chatwoot is vulnerable to Inefficient Regular Expression Complexity