CVE-2021-30111
CVE-2021-30111 is a medium-severity vulnerability in Web-school Enterprise Resource Planning with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 5.4)
- CVSS v2: 3.5
- EPSS exploit prediction: 1% (50th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Web-school Enterprise Resource Planning
- Published:
- Last modified:
Description
A stored XSS vulnerability exists in Web-School ERP V 5.0 via (Add Events) in the event name and description fields. An attack can inject a JavaScript code that will be stored in the page. If any visitor sees the events, then the payload will be executed.
Frequently asked questions
- What is CVE-2021-30111?
- A stored XSS vulnerability exists in Web-School ERP V 5.0 via (Add Events) in the event name and description fields. An attack can inject a JavaScript code that will be stored in the page. If any visitor sees the events, then the payload will be executed.
- How severe is CVE-2021-30111?
- CVE-2021-30111 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2021-30111 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-30111?
- CVE-2021-30111 affects Web-school Enterprise Resource Planning. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-30111?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-30111 published?
- CVE-2021-30111 was published on 2021-04-08 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:web-school:enterprise_resource_planning:5.0:*:*:*:*:*:*:*
More vulnerabilities in Web-school Enterprise Resource Planning
- CVE-2021-30114 — Medium (CVSS 6.5): Web-School ERP V 5.0 contains a cross-site request forgery (CSRF) vulnerability that allows a remote attacker to create…
- CVE-2021-30112 — Medium (CVSS 6.5): Web-School ERP V 5.0 contains a cross-site request forgery (CSRF) vulnerability that allows a remote attacker to create…
- CVE-2021-30113 — Medium (CVSS 6.1): A blind XSS vulnerability exists in Web-School ERP V 5.0 via (Add Events) in event name and description fields. An…
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