Stored Cross-site scripting (XSS) vulnerability in Blackboard Learn/PeopleTool v9.1 allows users to inject arbitrary web script via the Til…

published 2020-02-25 6y ago modified 2026-06-17 4mo ago also EUVD-2020-29839

cvss: 5.4; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits: 0; none known

Stored Cross-site scripting (XSS) vulnerability in Blackboard Learn/PeopleTool v9.1 allows users to inject arbitrary web script via the Tile widget in the People Tool profile editor.

Patch / fix

fixed in 1

blackboard blackboard_learn 9.1

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Exploit prediction

0.62% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

github.com https://github.com/kyletimmermans/blackboard-xss/blob/master/CVE-2020-9008.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	3.5	AV:N/AC:M/Au:S/C:N/I:P/A:N

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /kyletimmermans/blackboard-xss/blob/master/CVE-2020-9008.md
exploit, third-party-advisory
blackboard.com
product

Sources

CVE List CVE-2020-9008
NVD CVE-2020-9008

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.