MEDIUMCVSS 5.4Vulnerability

CVE-2026-9318

tablib prior to 3.10.0 contains a stored cross-site scripting vulnerability in the HTML export functionality that allows attackers to execute arbitrary JavaScript by embedding malicious payloads in dataset titles, which are interpolated unsanitized into HTML output via the export_book method in the _html.py format handler. Attackers can rename worksheet sheets in imported files such as XLSX, ODS, XLS, or YAML with script payloads that are assigned to the Dataset title attribute and rendered unescaped inside an HTML h3 tag, leading to session hijacking, unauthorized administrative actions, and sensitive data exposure when the output is rendered in a browser.

Properties

summary
tablib: Stored XSS in the HTML export via unescaped dataset title
severity
MEDIUM
cvss_severity
MEDIUM
epss_score
0.00298
cvss_score
5.4
retrieved_at
2026-09-27T05:41:21+00:00
ghsa_published
2026-08-12T03:31:18Z
source_url
https://github.com/advisories/GHSA-gqgw-jghv-mxwx
ghsa_updated
2026-08-12T19:32:21Z
ghsa_id
GHSA-gqgw-jghv-mxwx
score
5.4
last_source
FIRST EPSS
cve_id
CVE-2026-9318
cvss_vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
signal_observed_at
2026-09-11T17:55:57+00:00
is_ghsa_only
false
vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
published_at
2026-08-12T03:16:43.233
last_modified
2026-09-24T20:28:01.780
epss_percentile
0.20188

Related Entities (6)

DESCRIBED_BY (1)

→[Source]NVD

ENRICHED_BY (1)

→[Source]FIRST EPSS

VULNERABLE_TO (1)

←[Software]pip/tablib

AFFECTS (1)

→[Software]pip/tablib

HAS_WEAKNESS (1)

→[Weakness]Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

REPORTED_BY (1)

→[Source]GitHub Advisory Database

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CVE-2026-9318 (CVSS 5.4) — Ninja Signal Threat Intelligence | Ninja Signal