Is CVE-2026-33043 in the CISA KEV catalog?

No. CVE-2026-33043 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-33043?

CVE-2026-33043 has a CVSS v3 base score of 8.1 (HIGH).

What is the EPSS score for CVE-2026-33043?

CVE-2026-33043 has an EPSS score of 0.34% (27th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-33043?

Upgrade avideo to 26.0 or later.

CVE & CISA-KEV Catalog

CVE-2026-33043

HIGH

8.1

CVSS v3

NVD

Description

WWBN AVideo is an open source video platform. In versions 25.0 and below, /objects/phpsessionid.json.php exposes the current PHP session ID to any unauthenticated request. The allowOrigin() function reflects any Origin header back in Access-Control-Allow-Origin with Access-Control-Allow-Credentials: true, enabling cross-origin session theft and full account takeover. This issue has been fixed in version 26.0.

CWE-942

How to fix

Remediation Available

avideoNVD

Affected:< 26.0Fixed in:26.0CVE-2026-33043derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

0.34%probability of exploitation in 30 days

27thpercentile

Low risk: more likely to be exploited than 27% of all known CVEs.

References

Patch1

github.com

Exploit1

github.com

Related Vulnerabilities

Other CWE-942 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2026-22812	High	8.8	17%	-	Fix
CVE-2023-38122	High	7.2	1.5%	-	Fix
CVE-2019-14860	Medium	6.5	1.2%	-	Fix
CVE-2023-38125	High	8.8	1.1%	-	Fix
CVE-2022-31736	Critical	9.8	1.1%	-	Fix
CVE-2020-36851	Unscored	-	1.0%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-23.