CVE-2020-8091
Typo3 Cross-Site Scripting in Flash component (ELTS)
svg.swf in TYPO3 6.2.0 to 6.2.38 ELTS and 7.0.0 to 7.1.0 could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack on a targeted system. This may be at a contrib/websvg/svg.swf pathname.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
svg.swf in TYPO3 6.2.0 to 6.2.38 ELTS and 7.0.0 to 7.1.0 could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack on a targeted system. This may be at a contrib/websvg/svg.swf pathname.
- Record
CVE-2020-8091- CVSS 3.0
- 4.8 Medium
CVSS:3.0/AC:H/AV:N/A:N/C:L/I:L/PR:N/S:U/UI:N - Updated
- 2026-11-02
EUVDEUVD-2022-5035
svg.swf in TYPO3 6.2.0 to 6.2.38 ELTS and 7.0.0 to 7.1.0 could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack on a targeted system. This may be at a contrib/websvg/svg.swf pathname.
- Record
EUVD-2022-5035- CVSS 3.0
- 4.8 Medium
CVSS:3.0/AC:H/AV:N/A:N/C:L/I:L/PR:N/S:U/UI:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-qvhv-pwww-53jj
Typo3 Cross-Site Scripting in Flash component (ELTS)
TYPO3 6.2.0 to 6.2.38 ELTS and 7.0.0 to 7.1.0 included a vulnerable external component, which could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack on a targeted system.
- Record
GHSA-qvhv-pwww-53jj- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
svg.swf in TYPO3 6.2.0 to 6.2.38 ELTS and 7.0.0 to 7.1.0 could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack on a targeted system. This may be at a contrib/websvg/svg.swf pathname.
- Record
CVE-2020-8091- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 3.0
- 4.8 Medium
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
svg.swf in TYPO3 6.2.0 to 6.2.38 ELTS and 7.0.0 to 7.1.0 could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack on a targeted system. This may be at a contrib/websvg/svg.swf pathname.
- Record
CVE-2020-8091- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVGHSA-qvhv-pwww-53jj
Typo3 Cross-Site Scripting in Flash component (ELTS)
TYPO3 6.2.0 to 6.2.38 ELTS and 7.0.0 to 7.1.0 included a vulnerable external component, which could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack on a targeted system.
- Record
GHSA-qvhv-pwww-53jj- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSVBIT-typo3-2020-8091 No score
svg.swf in TYPO3 6.2.0 to 6.2.38 ELTS and 7.0.0 to 7.1.0 could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack on a targeted system. This may be at a contrib/websvg/svg.swf pathname.
- Record
BIT-typo3-2020-8091- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
typo3/cmsPackagist |
6.2.0 to 6.2.38 | 6.2.39 |
typo3/cmsPackagist |
7.0.0 to 7.1.0 | 7.2.0 |
typo3Bitnami |
6.2.0 up to 6.2.39, 7.0.0 up to 7.1.0 | 6.2.397.1.0 |
typo3/cmsPackagist |
7.0.0 up to 7.2.0, plus listed versions 7.0.17.0.27.1.0 |
7.2.0 |
typo3/cmsPackagist |
6.2.0 up to 6.2.39, plus listed versions 6.2.16.2.106.2.10-rc16.2.116.2.12 Show 27 moreShow less6.2.136.2.146.2.156.2.166.2.176.2.186.2.196.2.26.2.206.2.216.2.226.2.236.2.246.2.256.2.266.2.276.2.286.2.296.2.36.2.306.2.316.2.46.2.56.2.66.2.76.2.86.2.9 |
6.2.39 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-8091 is a medium vulnerability (CVSS 4.8) in Typo3, published January 27, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 5.21%, the 92nd percentile. Fixed in typo3/cms 6.2.39.
References
typo3.org/security/advisory/typo3-psa-2019-003
purplemet.com/blog/typo3-xss-vulnerability
nvd.nist.gov/vuln/detail/CVE-2020-8091
github.com/TYPO3/typo3/blob/4cb53e828bd5138d180cdf9cac1ccf7fd31086d2/typo3/sysext/core/Documentation/Changelog/7.2/Breaking-65962-WebSVGLibraryAndAPIRemoved.rst