CVE-2026-77838
MEDIUMCVSS 4.8/10EPSS 0.17%
Last modified
CVE-2026-77838 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. SOY Calendar contains a cross-site scripting vulnerability. An arbitrary script may be executed on the web browser of the user who is logging in to the product.. EPSS estimates a 0.17% chance of exploitation in the next 30 days.
Description
SOY Calendar contains a cross-site scripting vulnerability. An arbitrary script may be executed on the web browser of the user who is logging in to the product.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Tsuyoshi Saito | SOY Calendar | >= o, <= 2.4.0 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-77838?
SOY Calendar contains a cross-site scripting vulnerability. An arbitrary script may be executed on the web browser of the user who is logging in to the product.
How severe is CVE-2026-77838?
CVE-2026-77838 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.
How do I fix CVE-2026-77838?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-77826The RegistrationMagic WordPress plugin before 6.0.9.9 does …8.8
- CVE-2026-77827Maono Link 3.8.13 MaonoAiServices Windows service allows loc…7.1
- CVE-2026-77829The Cooked – Recipe Management plugin for WordPress is vulne…6.4
- CVE-2026-7783A flaw has been found in CodeCanyon Perfex CRM up to 3.4.1. …6.3
- CVE-2026-77830The Spam protection, Honeypot, Anti-Spam by CleanTalk plugin…7.2
- CVE-2026-77831Inefficient Algorithmic Complexity vulnerability in ash-proj…2.1
- CVE-2026-7784A vulnerability has been found in RTGS2017 NagaAgent up to 5…7.3
- CVE-2026-77846Improper Neutralization of Special Elements in Data Query Lo…2.1
- CVE-2026-77847Tycon Systems TPDIN-Monitor-WEB3 versions 2.2.9 and prior ar…6.5
- CVE-2026-7785A security flaw has been discovered in A-G-U-P-T-A wireshark…7.3
- CVE-2026-77850Stored Cross-site Scripting vulnerability in ash-project ash…8.4
- CVE-2026-77853Improper neutralization of special elements used in an OS co…8.7
Are you affected by CVE-2026-77838?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST